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L-Cysteine hydrochloride

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Amino Acid Derivatives (12) Apoptosis (9) Aryl Hydrocarbon Receptor (1) Autophagy (1) Beta-lactamase (1) Beta-secretase (2) Biochemical Assay Reagents (5) Cholinesterase (ChE) (1) Cytochrome P450 (1) Disulfidptosis (3) DNA/RNA Synthesis (1) Drug Metabolite (1) Endogenous Metabolite (30) Ferroptosis (6) HDAC (1) Histamine Receptor (1) iGluR (3) Influenza Virus (3) Isotope-Labeled Compounds (26) Keap1-Nrf2 (3) Kinesin (1) Reactive Oxygen Species (8) ROS Kinase (3) TNF Receptor (1)
By Research Areas:	Cancer (17) Cardiovascular Disease (2) Infection (6) Inflammation/Immunology (10) Metabolic Disease (25) Neurological Disease (12)

By Targets:

Amino Acid Derivatives (12)

Apoptosis (9)

Aryl Hydrocarbon Receptor (1)

Autophagy (1)

Beta-lactamase (1)

Beta-secretase (2)

Biochemical Assay Reagents (5)

Cholinesterase (ChE) (1)

Cytochrome P450 (1)

Disulfidptosis (3)

DNA/RNA Synthesis (1)

Drug Metabolite (1)

Endogenous Metabolite (30)

Ferroptosis (6)

HDAC (1)

Histamine Receptor (1)

iGluR (3)

Influenza Virus (3)

Isotope-Labeled Compounds (26)

Keap1-Nrf2 (3)

Kinesin (1)

Reactive Oxygen Species (8)

ROS Kinase (3)

TNF Receptor (1)

By Research Areas:

Cancer (17)

Cardiovascular Disease (2)

Infection (6)

Inflammation/Immunology (10)

Metabolic Disease (25)

Neurological Disease (12)

Inhibitors & Agonists

Biochemical Assay Reagents

Peptides

Natural
Products

Isotope-Labeled Compounds

Targets Recommended: ASCT

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-Y0337A

L-Cysteine hydrochloride 4 Publications Verification	Endogenous Metabolite	Metabolic Disease Cancer
L-Cysteine hydrochloride is an orally active conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine hydrochloride suppresses ghrelin and reduces appetite in rodents. L-Cysteine hydrochloride inhibits Aspergillus flavus growth and AFB synthesis by disrupting cell structure and antioxidant system balance. L-Cysteine hydrochloride enhances relaxant responses of rat aortic rings to NO and reduces responses to endothelium-derived relaxing factor (EDRF) .

HY-W016715

L-Cysteine hydrochloride hydrate 4 Publications Verification	Endogenous Metabolite	Metabolic Disease Cancer
L-Cysteine hydrochloride hydrate is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine hydrochloride hydrate suppresses ghrelin and reduces appetite in rodents and humans .

HY-B1038

L-Cysteine methyl ester hydrochloride	Others	Inflammation/Immunology
L-Cysteine methyl ester hydrochloride is an antitussive, phlegmolytic agent used to relieve breathing difficulties caused by large amounts of phlegm. L-Cysteine methyl ester hydrochloride is a copper corrosion inhibitor used in various industrial studies .

HY-Y0337

*L-Cysteine* 4 Publications Verification Cysteine	Endogenous Metabolite	Metabolic Disease Cancer
L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans .

HY-45609

L-Cysteine S-sulfate sodium hydrate	iGluR Endogenous Metabolite	Neurological Disease
L-Cysteine S-sulfate sodium hydrate is a potent N-methyl-d-aspartate (NMDA) glutamatergic receptors agonist. L-Cysteine S-sulfate sodium hydrate is the substrate for cystine lyase, it can be used in mass spectrometry operations .

HY-W016715R

L-Cysteine hydrochloride hydrate (Standard)	Endogenous Metabolite	Metabolic Disease
L-Cysteine (hydrochloride hydrate) (Standard) is the analytical standard of L-Cysteine (hydrochloride hydrate). This product is intended for research and analytical applications. L-Cysteine hydrochloride hydrate is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine hydrochloride hydrate suppresses ghrelin and reduces appetite in rodents and humans .

HY-Y0337AR

L-Cysteine hydrochloride (Standard)	Endogenous Metabolite	Metabolic Disease Cancer
L-Cysteine (hydrochloride) (Standard) is the analytical standard of L-Cysteine (hydrochloride). This product is intended for research and analytical applications. L-Cysteine hydrochloride is an orally active conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine hydrochloride suppresses ghrelin and reduces appetite in rodents. L-Cysteine hydrochloride inhibits Aspergillus flavus growth and AFB synthesis by disrupting cell structure and antioxidant system balance. L-Cysteine hydrochloride enhances relaxant responses of rat aortic rings to NO and reduces responses to endothelium-derived relaxing factor (EDRF) [4].

HY-Y0337R

L-Cysteine (Standard)	Endogenous Metabolite	Metabolic Disease Cancer
L-Cysteine (Standard) is the analytical standard of L-Cysteine. This product is intended for research and analytical applications. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans .

HY-113084

L-Cysteine S-sulfate	iGluR Endogenous Metabolite	Neurological Disease
L-Cysteine S-sulfate is a potent N-methyl-d-aspartate (NMDA) glutamatergic receptor agonist. L-Cysteine S-sulfate is the substrate for cystine lyase, and can be used in mass spectrometry operations .

HY-100787

L-Cysteine S-sulfate sodium	iGluR Endogenous Metabolite	Neurological Disease
L-Cysteine S-sulfate sodium is a potent N-methyl-d-aspartate (NMDA) glutamatergic receptors agonist. L-Cysteine S-sulfate sodium hydrate is the substrate for cystine lyase, it can be used in mass spectrometry operations .

HY-Y1875

L-Cysteine ethyl ester HCl Ethyl cysteinate hydrochloride	Amino Acid Derivatives	Others
L-Cysteine ethyl ester HCl is a cysteine derivative .

HY-Y0337S5

L-Cysteine-d3	Isotope-Labeled Compounds Endogenous Metabolite	Metabolic Disease
L-Cysteine-d₃ is the deuterium labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S6

L-Cysteine-d2	Isotope-Labeled Compounds Endogenous Metabolite	Metabolic Disease
L-Cysteine-d₂ is the deuterium labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S1

L-Cysteine-15N	Endogenous Metabolite	Metabolic Disease
L-Cysteine- ¹⁵N is the ¹⁵N-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S4

L-Cysteine-13C3	Endogenous Metabolite	Metabolic Disease
L-Cysteine- ¹³C₃ is the ¹³C-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S2

L-Cysteine-3-13C	Endogenous Metabolite	Metabolic Disease
L-Cysteine-3- ¹³C is the ¹³C-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S3

L-Cysteine-1-13C	Endogenous Metabolite	Metabolic Disease
L-Cysteine-1- ¹³C is the ¹³C-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S7

L-Cysteine-d3,15N	Isotope-Labeled Compounds Endogenous Metabolite	Metabolic Disease
L-Cysteine-d₃, ¹⁵N is the deuterium and ¹⁵N-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S

L-Cysteine-13C3,15N	Endogenous Metabolite	Metabolic Disease
L-Cysteine- ¹³C₃, ¹⁵N is the ¹³C- and ¹⁵N-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-N0771S6

L-Cysteine-13C3,15N,d3	Isotope-Labeled Compounds Endogenous Metabolite	Others
L-Cysteine- ¹³C₃, ¹⁵N,d₃ is the deuterium, ¹³C-, and 15-labeled L-Isoleucine. L-isoleucine is a nonpolar hydrophobic amino acid[1]. L-Isoleucine is an essential amino acid.

HY-W013573

S-Allyl-L-cysteine 1 Publications Verification	Apoptosis	Neurological Disease Metabolic Disease Inflammation/Immunology Cancer
S-Allyl-L-cysteine, one of the organosulfur compounds found in AGE, possess various biological effects including neurotrophic activity, anti-cancer activity, anti-inflammatory activity.

HY-W009682

*S-(Acetamidomethyl)-L-cysteine* hydrochloride**	Amino Acid Derivatives	Others
S-(Acetamidomethyl)-L-cysteine hydrochloride is a cysteine derivative .

HY-135174

L-Cysteine-glutathione disulfide	Endogenous Metabolite	Infection
L-Cysteine-glutathione disulfide is a metabolite in plasma that can be used in biomarker studies for tuberculosis cure .

HY-128466

N-Biotinyl-L-cysteine	Biochemical Assay Reagents	Others
N-Biotinyl-L-cysteine is a biotinylated biochemical assay reagent, which is used to detect avidin and biotin through a competitive binding reaction .

HY-118642

D-Ribose-L-cysteine	Cholinesterase (ChE) Reactive Oxygen Species	Cardiovascular Disease Neurological Disease
D-Ribose-L-cysteine is an orally active cysteine analog. D-Ribose-L-cysteine improves cellular antioxidant capacity by enhancing intracellular glutathione (GSH) biosynthesis. In addition, D-Ribose-L-cysteine has a memory-enhancing effect and can reverse Scopolamine (HY-N0296)-induced memory impairment by inhibiting oxidative stress and acetylcholinesterase (AChE) activity. D-Ribose-L-cysteine can be used in the study of neurodegenerative and cardiovascular diseases .

HY-W425671

N-Isobutyryl-L-cysteine	Others	Others
N-Isobutyryl-L-cysteine serves as a chiral derivatizing agent that is extensively utilized for the separation of amino acid enantiomers.

HY-111827

S-1-Propenyl-L-cysteine 5 Publications Verification	Histamine Receptor	Cardiovascular Disease Others Metabolic Disease Inflammation/Immunology
S-1-Propenyl-L-cysteine is a stereoisomer of S-allyl-l-cysteine, extracted from garlic, with immunomodulatory effects and reduces blood pressure in a hypertensive animal model . S-1-Propenyl-L-cysteine exhibits antioxidative efficacy through a NO-dependent BACH1 signaling pathway . S-1-Propenyl-L-cysteine is orally active.

HY-W141791

S-tert-Butylmercapto-L-cysteine	Amino Acid Derivatives	Others
S-tert-Butylmercapto-L-cysteine is a cysteine derivative .

HY-111592

S-(5′-Adenosyl)-L-cysteine	Amino Acid Derivatives	Others
S-(5′-Adenosyl)-L-cysteine is a cysteine derivative .

HY-W014238

*S-tert-Butyl-L-cysteine* hydrochloride**	Amino Acid Derivatives	Others
S-tert-Butyl-L-cysteine hydrochloride is a cysteine derivative .

HY-114788

Lysylcysteine L-Lysyl-L-Cysteine	Others	Others
Lysylcysteine (L-Lysyl-L-cysteine) is a dipeptide composed of lysine and cysteine.

HY-W013573R

*S-Allyl-L-cysteine* (Standard)**	Apoptosis	Neurological Disease Metabolic Disease Inflammation/Immunology Cancer
S-Allyl-L-cysteine (Standard) is the analytical standard of S-Allyl-L-cysteine. This product is intended for research and analytical applications. S-Allyl-L-cysteine, one of the organosulfur compounds found in AGE, possess various biological effects including neurotrophic activity, anti-cancer activity, anti-inflammatory activity.

HY-W554799

*S-Benzyl-L-cysteine* ethyl ester hydrochloride**	Biochemical Assay Reagents
S-Benzyl-L-cysteine ethyl ester (hydrochloride) is a kind of biochemical reagent.

HY-121765

Dacisteine N,S-Diacetyl-L-Cysteine	Endogenous Metabolite	Metabolic Disease
Dacisteine (N,S-Diacetyl-L-cysteine) is a cysteine derivative and displays a less New Delhi metallo-beta-lactamase-1 (NDM-1) inhibitor with an IC₅₀ value of 1000 μM . Dacisteine can be used for the treatment of cardiovascular and cerebrovascular diseases caused by platelet aggregation .

HY-160255

N-Cbz-L-Cysteine Cbz-Cysteine	Beta-lactamase	Infection
N-Cbz-L-Cysteine (Cbz-cysteine) (compound 5) is a potent β-lactamase II inhibitor with a K_i value of 97 µM .

HY-W142867

S-β-(4-Pyridylethyl)-L-cysteine	Biochemical Assay Reagents
S-β-(4-Pyridylethyl)-L-cysteine is a kind of biochemical reagent.

HY-B2188

S-Methyl-L-cysteine L-S-MethylCysteine	Reactive Oxygen Species	Neurological Disease Metabolic Disease
S-Methyl-L-cysteine is a natural product that acts as a substrate in the catalytic antioxidant system mediated by methionine sulfoxide reductase A (MSRA), with antioxidative, neuroprotective, and anti-obesity activities.

HY-114245

Se-Methylselenocysteine 2 Publications Verification MethylselenoCysteine; Se-Methylseleno-L-Cysteine	Apoptosis Endogenous Metabolite Beta-secretase	Cancer
Se-Methylselenocysteine, a precursor of Methylselenol, has potent cancer chemopreventive activity and anti-oxidant activity. Se-Methylselenocysteine is orally bioavailable, and induces apoptosis .

HY-133021

Arazine N-Acetyl-S-farnesyl-L-Cysteine	Others	Inflammation/Immunology
Arazine (N-Acetyl-S-farnesyl-L-cysteine) is a cell-permeable modulator of G protein and G-protein coupled receptor signaling. Arazine can be a a substrate for isoprenylcysteine methyltransferase by competing with prenylated G protein or its receptors site .

HY-115754

S-(N-PhenethylthiocarbaMoyl)-L-cysteine PEITC-Cys	DNA/RNA Synthesis Cytochrome P450	Cancer
S-(N-PhenethylthiocarbaMoyl)-L-cysteine (PEITC-Cys), an anticarcinogenic agent, has antileukemic activity. S-(N-PhenethylthiocarbaMoyl)-L-cysteine inhibits DNA synthesis in HL60 cells . S-(N-PhenethylthiocarbaMoyl)-L-cysteine is a P450 inhibitor .

HY-W004153

S-(Acetamidomethyl)-N-(tert-butoxycarbonyl)-L-cysteine	Amino Acid Derivatives	Others
S-(Acetamidomethyl)-N-(tert-butoxycarbonyl)-L-cysteine is a cysteine derivative .

HY-114245B

Se-Methylselenocysteine hydrochloride MethylselenoCysteine hydrochloride; Se-Methylseleno-L-Cysteine hydrochloride	Endogenous Metabolite Apoptosis Beta-secretase	Cancer
Se-Methylselenocysteine hydrochloride, a precursor of Methylselenol, has potent cancer chemopreventive activity and anti-oxidant activity. Se-Methylselenocysteine hydrochloride is orally bioavailable, and induces apoptosis .

HY-N10123

Indolokine A5	Aryl Hydrocarbon Receptor	Cancer
Indolokine A5, a catabolite of L-cysteine, is a potent AhR agonist .

HY-147065

γ-L-Glutamyl-S-allyl-L-cysteine	Others	Others
γ-L-Glutamyl-S-allyl-L-cysteine is a naturally occurring organosulfur compound found in garlic .

HY-114976S

*N-Acetyl-S-allyl-L-cysteine-d3*	Isotope-Labeled Compounds	Others
N-Acetyl-S-allyl-L-cysteine-d₃ is the deuterium labeled Fluometuron[1].

HY-144414S

*N-Acetyl-S-ethyl-L-cysteine-d5*	Isotope-Labeled Compounds	Others
N-Acetyl-S-ethyl-L-cysteine-d₅ is the deuterium labeled N-Acetyl-S-ethyl-L-cysteine[1].

HY-W214059S

*N-Acetyl-S-methyl-L-cysteine-d3*	Isotope-Labeled Compounds	Others
N-Acetyl-S-methyl-L-cysteine-d₃ is the deuterium labeled C18:1-Ceramide[1].

HY-B0215

Acetylcysteine Maximum Cited Publications 397 Publications Verification N-AcetylCysteine; N-Acetyl-L-Cysteine; NAC	Reactive Oxygen Species Endogenous Metabolite Apoptosis Ferroptosis Influenza Virus Disulfidptosis	Infection Neurological Disease Cancer
Acetylcysteine (N-Acetylcysteine) is a mucolytic agent which reduces the thickness of the mucus. Acetylcysteine is a ROS inhibitor. Acetylcysteine is a cysteine precursor, prevents hemin-induced ferroptosis by neutralizing toxic lipids generated by arachidonate-dependent activity of 5-lipoxygenases. Acetylcysteine induces cell apoptosis. Acetylcysteine also has anti-influenza virus activities. In addition, Acetylcysteine is the most stable form of cysteine during drug delivery and can be used in disulfidptosis studies .

HY-139474S

*N-Acetyl-S-(carbamoylethyl)-L-cysteine-d3*	Isotope-Labeled Compounds	Others
N-Acetyl-S-(carbamoylethyl)-L-cysteine-d₃ is the deuterium labeled N-Acetyl-S-(carbamoylethyl)-L-cysteine[1].

HY-141718S

*N-Acetyl-S-(trichlorovinyl)-L-cysteine-d3*	Isotope-Labeled Compounds	Others
N-Acetyl-S-(trichlorovinyl)-L-cysteine-d₃ is the deuterium labeled N-Acetyl-S-(trichlorovinyl)-L-cysteine[1].

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-Y0337A

L-Cysteine hydrochloride 4 Publications Verification	Structural Classification Classification of Application Fields Anti-aging Source classification Metabolic Disease Amino acids Endogenous metabolite Disease Research Fields	Endogenous Metabolite
L-Cysteine hydrochloride is an orally active conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine hydrochloride suppresses ghrelin and reduces appetite in rodents. L-Cysteine hydrochloride inhibits Aspergillus flavus growth and AFB synthesis by disrupting cell structure and antioxidant system balance. L-Cysteine hydrochloride enhances relaxant responses of rat aortic rings to NO and reduces responses to endothelium-derived relaxing factor (EDRF) .

HY-W016715

L-Cysteine hydrochloride hydrate 4 Publications Verification	Structural Classification Classification of Application Fields Source classification Metabolic Disease Amino acids Endogenous metabolite Disease Research Fields	Endogenous Metabolite
L-Cysteine hydrochloride hydrate is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine hydrochloride hydrate suppresses ghrelin and reduces appetite in rodents and humans .

HY-Y0337

*L-Cysteine* 4 Publications Verification Cysteine	Structural Classification Human Gut Microbiota Metabolites Microorganisms Classification of Application Fields Source classification Metabolic Disease Amino acids Endogenous metabolite Disease Research Fields	Endogenous Metabolite
L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans .

HY-45609

L-Cysteine S-sulfate sodium hydrate	Structural Classification Natural Products Neurological Disease Classification of Application Fields Source classification Endogenous metabolite Disease Research Fields	iGluR Endogenous Metabolite
L-Cysteine S-sulfate sodium hydrate is a potent N-methyl-d-aspartate (NMDA) glutamatergic receptors agonist. L-Cysteine S-sulfate sodium hydrate is the substrate for cystine lyase, it can be used in mass spectrometry operations .

HY-W013573

S-Allyl-L-cysteine 1 Publications Verification	Structural Classification Natural Products Neurological Disease Classification of Application Fields Anti-aging Source classification Metabolic Disease Allium sativum Linn. Plants Liliaceae Inflammation/Immunology Disease Research Fields Cancer	Apoptosis
S-Allyl-L-cysteine, one of the organosulfur compounds found in AGE, possess various biological effects including neurotrophic activity, anti-cancer activity, anti-inflammatory activity.

HY-W016715R

L-Cysteine hydrochloride hydrate (Standard)	Structural Classification Source classification Amino acids Endogenous metabolite	Endogenous Metabolite
L-Cysteine (hydrochloride hydrate) (Standard) is the analytical standard of L-Cysteine (hydrochloride hydrate). This product is intended for research and analytical applications. L-Cysteine hydrochloride hydrate is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine hydrochloride hydrate suppresses ghrelin and reduces appetite in rodents and humans .

HY-Y0337AR

L-Cysteine hydrochloride (Standard)	Structural Classification Source classification Amino acids Endogenous metabolite	Endogenous Metabolite
L-Cysteine (hydrochloride) (Standard) is the analytical standard of L-Cysteine (hydrochloride). This product is intended for research and analytical applications. L-Cysteine hydrochloride is an orally active conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine hydrochloride suppresses ghrelin and reduces appetite in rodents. L-Cysteine hydrochloride inhibits Aspergillus flavus growth and AFB synthesis by disrupting cell structure and antioxidant system balance. L-Cysteine hydrochloride enhances relaxant responses of rat aortic rings to NO and reduces responses to endothelium-derived relaxing factor (EDRF) [4].

HY-Y0337R

L-Cysteine (Standard)	Structural Classification Human Gut Microbiota Metabolites Microorganisms Source classification Amino acids Endogenous metabolite	Endogenous Metabolite
L-Cysteine (Standard) is the analytical standard of L-Cysteine. This product is intended for research and analytical applications. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans .

HY-113084

L-Cysteine S-sulfate	Structural Classification Natural Products Immune System Disorder Neurological Disease Classification of Application Fields Disease markers Endocrine diseases Nervous System Disorder Endogenous metabolite Disease Research Fields	iGluR Endogenous Metabolite
L-Cysteine S-sulfate is a potent N-methyl-d-aspartate (NMDA) glutamatergic receptor agonist. L-Cysteine S-sulfate is the substrate for cystine lyase, and can be used in mass spectrometry operations .

HY-100787

L-Cysteine S-sulfate sodium	Structural Classification Natural Products Neurological Disease Classification of Application Fields Source classification Endogenous metabolite Disease Research Fields	iGluR Endogenous Metabolite
L-Cysteine S-sulfate sodium is a potent N-methyl-d-aspartate (NMDA) glutamatergic receptors agonist. L-Cysteine S-sulfate sodium hydrate is the substrate for cystine lyase, it can be used in mass spectrometry operations .

HY-111827

S-1-Propenyl-L-cysteine 5 Publications Verification	Cardiovascular Disease Structural Classification Liliaceae Classification of Application Fields Ketones, Aldehydes, Acids Source classification Allium sativum Linn. Plants Disease Research Fields	Histamine Receptor
S-1-Propenyl-L-cysteine is a stereoisomer of S-allyl-l-cysteine, extracted from garlic, with immunomodulatory effects and reduces blood pressure in a hypertensive animal model . S-1-Propenyl-L-cysteine exhibits antioxidative efficacy through a NO-dependent BACH1 signaling pathway . S-1-Propenyl-L-cysteine is orally active.

HY-W013573R

*S-Allyl-L-cysteine* (Standard)**	Structural Classification Natural Products Liliaceae Source classification Allium sativum Linn. Plants	Apoptosis
S-Allyl-L-cysteine (Standard) is the analytical standard of S-Allyl-L-cysteine. This product is intended for research and analytical applications. S-Allyl-L-cysteine, one of the organosulfur compounds found in AGE, possess various biological effects including neurotrophic activity, anti-cancer activity, anti-inflammatory activity.

HY-121765

Dacisteine N,S-Diacetyl-L-Cysteine	Structural Classification Natural Products Classification of Application Fields Source classification Metabolic Disease Endogenous metabolite Disease Research Fields	Endogenous Metabolite
Dacisteine (N,S-Diacetyl-L-cysteine) is a cysteine derivative and displays a less New Delhi metallo-beta-lactamase-1 (NDM-1) inhibitor with an IC₅₀ value of 1000 μM . Dacisteine can be used for the treatment of cardiovascular and cerebrovascular diseases caused by platelet aggregation .

HY-B2188

S-Methyl-L-cysteine L-S-MethylCysteine	Structural Classification other families Ketones, Aldehydes, Acids Source classification Plants	Reactive Oxygen Species
S-Methyl-L-cysteine is a natural product that acts as a substrate in the catalytic antioxidant system mediated by methionine sulfoxide reductase A (MSRA), with antioxidative, neuroprotective, and anti-obesity activities.

HY-114245

Se-Methylselenocysteine 2 Publications Verification MethylselenoCysteine; Se-Methylseleno-L-Cysteine	Structural Classification other families Microorganisms Classification of Application Fields Ketones, Aldehydes, Acids Source classification Plants Disease Research Fields Cancer	Apoptosis Endogenous Metabolite Beta-secretase
Se-Methylselenocysteine, a precursor of Methylselenol, has potent cancer chemopreventive activity and anti-oxidant activity. Se-Methylselenocysteine is orally bioavailable, and induces apoptosis .

HY-114245B

Se-Methylselenocysteine hydrochloride MethylselenoCysteine hydrochloride; Se-Methylseleno-L-Cysteine hydrochloride	Structural Classification Natural Products Classification of Application Fields Source classification Endogenous metabolite Disease Research Fields Cancer	Endogenous Metabolite Apoptosis Beta-secretase
Se-Methylselenocysteine hydrochloride, a precursor of Methylselenol, has potent cancer chemopreventive activity and anti-oxidant activity. Se-Methylselenocysteine hydrochloride is orally bioavailable, and induces apoptosis .

HY-N10123

Indolokine A5	Alkaloids Classification of Application Fields Source classification Endogenous metabolite Disease Research Fields Indole Alkaloids Cancer	Aryl Hydrocarbon Receptor
Indolokine A5, a catabolite of L-cysteine, is a potent AhR agonist .

HY-147065

γ-L-Glutamyl-S-allyl-L-cysteine	Liliaceae Ketones, Aldehydes, Acids Source classification Plants Amaryllidaceae A．Sativam L. var．Viviparum Regel	Others
γ-L-Glutamyl-S-allyl-L-cysteine is a naturally occurring organosulfur compound found in garlic .

HY-B0215

Acetylcysteine Maximum Cited Publications 397 Publications Verification N-AcetylCysteine; N-Acetyl-L-Cysteine; NAC	Structural Classification Microorganisms Ketones, Aldehydes, Acids Source classification Endogenous metabolite	Reactive Oxygen Species Endogenous Metabolite Apoptosis Ferroptosis Influenza Virus Disulfidptosis
Acetylcysteine (N-Acetylcysteine) is a mucolytic agent which reduces the thickness of the mucus. Acetylcysteine is a ROS inhibitor. Acetylcysteine is a cysteine precursor, prevents hemin-induced ferroptosis by neutralizing toxic lipids generated by arachidonate-dependent activity of 5-lipoxygenases. Acetylcysteine induces cell apoptosis. Acetylcysteine also has anti-influenza virus activities. In addition, Acetylcysteine is the most stable form of cysteine during drug delivery and can be used in disulfidptosis studies .

HY-W251393

S-(2-Carboxypropyl)-L-cysteine β-Isobuteine	Structural Classification Natural Products Classification of Application Fields Source classification Metabolic Disease Endogenous metabolite Disease Research Fields	Endogenous Metabolite
S-(2-Carboxypropyl)-L-cysteine (β-Isobuteine) is a urine metabolite, a metabolic marker of leigh-like syndrome .

HY-121765R

Dacisteine (Standard) N,S-Diacetyl-L-Cysteine (Standard)	Structural Classification Natural Products Source classification Endogenous metabolite	Endogenous Metabolite
Dacisteine (Standard) is the analytical standard of Dacisteine. This product is intended for research and analytical applications. Dacisteine (N,S-Diacetyl-L-cysteine) is a cysteine derivative and displays a less New Delhi metallo-beta-lactamase-1 (NDM-1) inhibitor with an IC₅₀ value of 1000 μM . Dacisteine can be used for the treatment of cardiovascular and cerebrovascular diseases caused by platelet aggregation .

HY-111825A

(R)-1-PeCSO Isoalliin; trans-(+)-S-1-Propenyl-L-Cysteine sulfoxide	Structural Classification Liliaceae Classification of Application Fields Ketones, Aldehydes, Acids Source classification Other Diseases Allium cepa L. Plants Disease Research Fields	Others
(R)-1-PeCSO (trans-(+)-S-1-Propenyl-L-cysteine sulfoxide) is the most abundant flavor precursor in onions .

HY-N0394

L-Cystine 1 Publications Verification	Structural Classification Human Gut Microbiota Metabolites Microorganisms Classification of Application Fields Source classification Other Diseases Amino acids Endogenous metabolite Disease Research Fields	Endogenous Metabolite Ferroptosis ROS Kinase Keap1-Nrf2 Reactive Oxygen Species
L-Cystine is an orally active extracellular form of L-Cysteine (HY-Y0337), occurring in proteins of plants and animals. L-Cystine elevates Nrf2 protein expression and activates Nrf2 transcription factor. L-cystine reduces ROS generation and protects against oxidant- or Doxorubicin (HY-15142A)-induced apoptosis. L-Cystine combined with L-theanine (HY-15121) enhances the production of antigen-specific IgG by increasing glutathione (GSH) levels and T helper 2 (Th2) mediated responses in mice. L-Cystine is promising for research of cystinuria and kidney stones

HY-N0394R

L-Cystine (Standard)	Structural Classification Human Gut Microbiota Metabolites Microorganisms Source classification Amino acids Endogenous metabolite	Endogenous Metabolite Ferroptosis ROS Kinase Keap1-Nrf2
L-Cystine (Standard) is the analytical standard of L-Cystine. This product is intended for research and analytical applications. L-Cystine, the extracellular form of L-Cysteine (HY-Y0337), is a nutritionally dispensable semiessential sulfur-containing amino acid, occurring in proteins of plants and animals. L-Cystine induces Nrf2 protein elevation in a Keap1 (HY-P75897)-dependent manner and activates Nrf2 transcription factor. L-cystine can elicit cytoprotection by reducing ROS generation and protecting against oxidant- or doxorubicin-induced apoptosis. The reduced reabsorption of L-Cystine in renal tubules and its poor solubility in urine are the important causes of cystine precipitation and cystine crystal formation eventually leading to kidney stones. L-Cystine combined with L-theanine (HY-15121) enhances the production of antigen-specific IgG by increasing glutathione (GSH) levels and T helper 2 (Th2) mediated responses in mice. L-Cystine is promising for research of cystinuria and cystinosis

Cat. No.	Product Name	Chemical Structure

HY-Y0337S5

L-Cysteine-d3
L-Cysteine-d₃ is the deuterium labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S6

L-Cysteine-d2
L-Cysteine-d₂ is the deuterium labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S1

L-Cysteine-15N
L-Cysteine- ¹⁵N is the ¹⁵N-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S4

L-Cysteine-13C3
L-Cysteine- ¹³C₃ is the ¹³C-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S2

L-Cysteine-3-13C
L-Cysteine-3- ¹³C is the ¹³C-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S3

L-Cysteine-1-13C
L-Cysteine-1- ¹³C is the ¹³C-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S

L-Cysteine-13C3,15N
L-Cysteine- ¹³C₃, ¹⁵N is the ¹³C- and ¹⁵N-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-Y0337S7

L-Cysteine-d3,15N
L-Cysteine-d₃, ¹⁵N is the deuterium and ¹⁵N-labeled L-Cysteine. L-Cysteine is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), glutathione and taurine. L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1].

HY-N0771S6

L-Cysteine-13C3,15N,d3
L-Cysteine- ¹³C₃, ¹⁵N,d₃ is the deuterium, ¹³C-, and 15-labeled L-Isoleucine. L-isoleucine is a nonpolar hydrophobic amino acid[1]. L-Isoleucine is an essential amino acid.

HY-114976S

*N-Acetyl-S-allyl-L-cysteine-d3*
N-Acetyl-S-allyl-L-cysteine-d₃ is the deuterium labeled Fluometuron[1].

HY-144414S

*N-Acetyl-S-ethyl-L-cysteine-d5*
N-Acetyl-S-ethyl-L-cysteine-d₅ is the deuterium labeled N-Acetyl-S-ethyl-L-cysteine[1].

HY-W214059S

*N-Acetyl-S-methyl-L-cysteine-d3*
N-Acetyl-S-methyl-L-cysteine-d₃ is the deuterium labeled C18:1-Ceramide[1].

HY-139474S

*N-Acetyl-S-(carbamoylethyl)-L-cysteine-d3*
N-Acetyl-S-(carbamoylethyl)-L-cysteine-d₃ is the deuterium labeled N-Acetyl-S-(carbamoylethyl)-L-cysteine[1].

HY-141718S

*N-Acetyl-S-(trichlorovinyl)-L-cysteine-d3*
N-Acetyl-S-(trichlorovinyl)-L-cysteine-d₃ is the deuterium labeled N-Acetyl-S-(trichlorovinyl)-L-cysteine[1].

HY-139491S

N-(Acetyl-d3)-S-benzyl-L-cysteine
N-(Acetyl-d₃)-S-benzyl-L-cysteine is the deuterium labeled N-(Acetyl)-S-benzyl-L-cysteine[1].

HY-139474S1

*N-Acetyl-S-(carbamoylethyl)-L-cysteine-d4*
N-Acetyl-S-(carbamoylethyl)-L-cysteine-d₄ is the deuterium labeled N-Acetyl-S-(carbamoylethyl)-L-cysteine[1].

HY-144355S

*N-Acetyl-S-propyl-L-cysteine-d7*
N-Acetyl-S-propyl-L-cysteine-d₇ is the deuterium labeled N-Acetyl-S-propyl-L-cysteine.

HY-W101367S

*N-Acetyl-S-benzyl-L-cysteine-d5*
N-Acetyl-S-benzyl-L-cysteine-d₅ is the deuterium labeled N-Acetyl-S-benzyl-L-cysteine.

HY-144407S

*N-Acetyl-S-(2-carboxyethyl)-L-cysteine-d3*
N-Acetyl-S-(2-carboxyethyl)-L-cysteine-d₃ is the deuterium labeled N-Acetyl-S-(2-carboxyethyl)-L-cysteine[1].

HY-144408S

*N-Acetyl-S-(N-methylcarbamoyl)-L-cysteine-d3*
N-Acetyl-S-(N-methylcarbamoyl)-L-cysteine-d₃ is the deuterium labeled N-Acetyl-S-(N-methylcarbamoyl)-L-cysteine[1].

HY-144409S

*N-Acetyl-S-(2-cyanoethyl)-L-cysteine-d3*
N-Acetyl-S-(2-cyanoethyl)-L-cysteine-d₃ is the deuterium labeled N-Acetyl-S-(2-cyanoethyl)-L-cysteine[1].

HY-144362S

*N-Acetyl-S-(2,5-dimethylbenzene)-L-cysteine-d3*
N-Acetyl-S-(2,5-dimethylbenzene)-L-cysteine-d₃ is the deuterium labeled N-Acetyl-S-(2,5-dimethylbenzene)-L-cysteine[1].

HY-W587731S

*N-Acetyl-S-(3,4-dihydroxybutyl)-L-cysteine-d7*
N-Acetyl-S-(3,4-dihydroxybutyl)-L-cysteine-d₇ is a deuterium labeled compound.

HY-132805S

*N-Acetyl-S-(2-hydroxyethyl)-L-cysteine-d4 dicyclohexylamine salt*
N-Acetyl-S-(2-hydroxyethyl)-L-cysteine-d₄ (dicyclohexylamine) is the deuterium labeled N-Acetyl-S-(2-hydroxyethyl)-L-cysteine dicyclohexylamine salt[1].

HY-146717S

*N-Acetyl-S-(3-hydroxypropyl)-L-cysteine-d6 dicyclohexylamine*
N-Acetyl-S-(3-hydroxypropyl)-L-cysteine-d₆ (dicyclohexylamine) is the deuterium labeled N-Acetyl-S-(3-hydroxypropyl)-L-cysteine.

HY-146716S

*N-Acetyl-S-(N-methyl-carbamoyl)-L-cysteine-d3 dicyclohexylamine*
N-Acetyl-S-(N-methyl-carbamoyl)-L-cysteine-d₃ (dicyclohexylamine) is the deuterium labeled N-Acetyl-S-(N-methyl-carbamoyl)-L-cysteine.

HY-W766569

*N-Acetyl S-(1,2-dichlorovinyl)-L-cysteine-13C,d3*
N-Acetyl S-(1,2-dichlorovinyl)-L-cysteine- ¹³C,d₃ is ¹³C and deuterated labeled N-Acetyl S-(1,2-dichlorovinyl)-L-cysteine.

HY-144364S

*N-Acetyl-S-(4-hydroxy-2-buten-1-yl)-L-cysteine-d3*
N-Acetyl-S-(4-hydroxy-2-buten-1-yl)-L-cysteine-d₃ is the deuterium labeled N-Acetyl-S-(4-hydroxy-2-buten-1-yl)-L-cysteine[1].

HY-B0215S

Acetylcysteine-d3

Acetylcysteine-d₃ is the deuterium labeled Acetylcysteine. Acetylcysteine (N-Acetylcysteine) is a mucolytic agent which reduces the thickness of the mucus. Acetylcysteine is a ROS inhibitor. Acetylcysteine is a cysteine precursor, prevents hemin-induced ferroptosis by neutralizing toxic lipids generated by arachidonate-dependent activity of 5-lipoxygenases. Acetylcysteine induces cell apoptosis. Acetylcysteine also has anti-influenza virus activities. In addition, Acetylcysteine is the most stable form of cysteine during drug delivery and can be used in disulfidptosis studies .

HY-B0215S1

Acetylcysteine-15N

Acetylcysteine- ¹⁵N (N-Acetylcysteine- ¹⁵N) is the ¹⁵N-labeled Acetylcysteine. Acetylcysteine (N-Acetylcysteine) is a mucolytic agent which reduces the thickness of the mucus. Acetylcysteine is a ROS inhibitor. Acetylcysteine is a cysteine precursor, prevents hemin-induced ferroptosis by neutralizing toxic lipids generated by arachidonate-dependent activity of 5-lipoxygenases. Acetylcysteine induces cell apoptosis. Acetylcysteine also has anti-influenza virus activities. In addition, Acetylcysteine is the most stable form of cysteine during drug delivery and can be used in disulfidptosis studies .

HY-19717S

DCVC-13C3,15N
DCVC- ¹³C₃, ¹⁵N is ¹⁵N and ¹³C labeled DCVC. DCVC (S-[(1E)-1,2-Dichloroethenyl]-L-cysteine) is a bioactive metabolite of trichloroethylene (TCE). DCVC inhibits pathogen-stimulated pro-inflammatory cytokines IL-1β, IL-8, and TNF-α release from tissue cultures .

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