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H2S

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47

Inhibitors & Agonists

4

Fluorescent Dye

1

Biochemical Assay Reagents

10

Natural
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8

Isotope-Labeled Compounds

3

Click Chemistry

Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-130347
    H2S Donor 5a

    		Endogenous Metabolite Others
    H2S Donor 5a is a cysteine-activated H2S donor. H2S plays important roles in biological systems. H2S Donor 5a is a useful tool in H2S research .
    H2S Donor 5a
  • HY-124409
    WSP-1

    		Fluorescent Dye Others
    WSP-1 is a selective and rapid-reaction H2S specific fluorescent dye (Ex/Em=465/515 nm). WSP-1 reacts with H2S with the releasing of fluorophore .
    WSP-1
  • HY-D1275
    CAY10731

    		Fluorescent Dye Others
    CAY10731 (compound 3) is a highly selective fluorescent probe for detection of hydrogen sulfide (H2S). CAY10731 is used to monitor exo- and endogenous H2S in both cancer and normal cells. CAY10731 is applied for imaging of H2S in living tissues at variable depths and in nematodes .
    CAY10731
  • HY-134495
    N-Acetyl-L-cysteine ethyl ester
    5 Publications Verification

    N-Acetylcysteine ethyl ester; NACET

    		 Reactive Oxygen Species Metabolic Disease
    N-Acetyl-L-cysteine ethyl ester is an esterified form of N-acetyl-L-cysteine (NAC). N-Acetyl-L-cysteine ethyl ester exhibits enhanced cell permeability, and produce NAC and cysteine. N-Acetyl-L-cysteine ethyl ester increases circulating hydrogen sulfide (H2S) and can be used as an H2S producer. N-Acetyl-L-cysteine ethyl ester has the potential to substitute NAC as a mucolytic agent, and as a GSH-related antioxidant .
    N-Acetyl-L-cysteine ethyl ester
  • HY-126124
    AP39
    3 Publications Verification

    		 Others Cardiovascular Disease Neurological Disease
    AP39 is a triphenylphosphonium derivatised anethole dithiolethione and mitochondria-targeting hydrogen sulfide (H2S) donor. AP39 increases intracellular H2S levels. AP39 exerts cytoprotective effects and maintains mitochondrial DNA integrity under oxidative stress conditions. AP39 protects against myocardial reperfusion injury in mice model and has the potential for Alzheimer's disease research [2] .
    AP39
  • HY-169331
    H2S scavenger 1 (triflate)

    		Bacterial Infection
    H2S scavenger 1 triflate (Compound 7b) is a H2S-depletion agent, and shows selectivity over glutathione. H2S scavenger 1 triflate disrupts the bacterial biofilm formation. H2S scavenger 1 triflate sensitizes S. aureus to Gentamicin (HY-A0276A) or photosensitizer via H2S depletion .
    H2S scavenger 1 (triflate)
  • HY-D2380
    H2S probe 1

    		G-quadruplex Cancer
    H2S probe 1 (compound 1NND) is a derivative of nitrobenzoxadiazole (NBD) with antitumor activity. H2S probe 1 is cytotoxic to human pancreatic cancer cell MIA PaCa-2 (IC50=77.9 nM) and has a high affinity for human telomeric G-quadruplex (G4) (Kd=1.72 μM). H2S probe 1 can be used in cancer research .
    H2S probe 1
  • HY-D1400
    HBTP-H2S chloride

    		Fluorescent Dye Others
    HBTP-H2S (chloride) is a NIR fluorescent probe for in situ bioimaging of endogenous H2S in rice roots under Al 3+ and flooding stresses.
    HBTP-H2S chloride
  • HY-160240
    HPI

    		Others Others Cancer
    HPI is a HS - fluorescent probe (Ex/Em=280/410 nm). HPI can be used to detect the HS - form of hydrogen sulfide (H2S) gas in environmental water samples .
    HPI
  • HY-123615
    SPD-2

    		Others Cardiovascular Disease Inflammation/Immunology
    SPD-2 is a photo-controlled hydrogen sulfide (H2S) donor that can generate hydrogen sulfide (H2S) upon UVA irradiation (325-385 nm). SPD-2 enables photo-controlled, site-specific H2S release in living cells .
    SPD-2
  • HY-107632
    GYY4137
    4 Publications Verification

    		 Others Cardiovascular Disease Neurological Disease Inflammation/Immunology Cancer
    GYY4137 is a slow releasing H2S donor with vasodilator and antihypertensive activity. GYY4137 also exhibits anti-inflammatory and anticancer activity [2] .
    GYY4137
  • HY-144439
    HTS07545

    		Others Cardiovascular Disease
    HTS07545 is a potent sulfide:quinone oxidoreductase (SQOR) inhibitor with an IC50 of 30 nM. HTS07545 decrease the rate of breakdown of hydrogen sulfide (H2S). HTS07545 can be used for heart failure research .
    HTS07545
  • 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 .
    L-Cysteine
  • HY-129303
    AP219

    		Endogenous Metabolite Metabolic Disease
    AP39 (Item No. 17100) is a compound used to increase the levels of hydrogen sulfide (H2S) within mitochondria. It consists of a mitochondria-targeting motif (triphenylphosphonium) coupled to an H2S-donating moiety (dithiolethione) by an aliphatic linker. AP219 is a control compound for AP39, containing the triphenylphosphonium scaffold but lacking the H2S-releasing portion.
    AP219
  • HY-129420
    WSP-5

    		Fluorescent Dye Others
    WSP-5 is a fluorescent probe for fast detection of H2S in biological samples and cells. WSP-5 selectively and rapidly reacts with H2S and exhibits fluorescence through a reaction-based fluorescent turn-on strategy.
    WSP-5
  • HY-149837
    PRO-F

    		Fluorescent Dye Inflammation/Immunology
    PRO-F is a photoactivable H2S donor with ROS scavenging ability. PRO-F can be activated by light to produce fluorescent signal, for real-time tracking of released H2S. PRO-F activation doesn’t consume endogenous substances. deliver H2S in an intracellular environment to protect cells from excessive reactive oxygen species (ROS) induced damage. PRO-F shows enhancement on chronic wound healing, researched in diabetic models as well .
    PRO-F
  • HY-15033
    ATB-343

    		Others Infection Inflammation/Immunology
    ATB-343 is a derivative of Indomethacin that releases H2S. H2S has cytoprotective and anti-inflammatory effects, inhibiting leukocyte adhesion to vascular endothelium and leukocyte migration to inflammatory sites. ATB-343 can be used to suppress respiratory infections [2].
    ATB-343
  • HY-161815
    Anti-inflammatory agent 89

    		Others Inflammation/Immunology
    Anti-inflammatory agent 89 (5c) inhibits all asthma features. Anti-inflammatory agent 89 exhibits a significative effect on the restoration of pulmonary structure and reduction of lung inflammation through both its corticosteroid and H2S releasing component, which is proming for research of Asthma .
    Anti-inflammatory agent 89
  • 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 .
    L-Cysteine (Standard)
  • HY-121955
    FW1256
    1 Publications Verification

    		 NF-κB Apoptosis Cardiovascular Disease Inflammation/Immunology Cancer
    FW1256 is a phenyl analogue and a slow-releasing hydrogen sulfide (H2S) donor. FW1256 inhibits NF-κB activity and induces cell apoptosis. FW1256 exerts potent anti-inflammatory effects and has the potential for cancer and cardiovascular disease treatment [2].
    FW1256
  • HY-168639
    AMPK activator 15

    		AMPK Metabolic Disease
    AP39 prodrug 1 (Compound M1) is a mitochondria-targeted H2S prodrug. AP39 prodrug 1 induces ROS-dependent mild mitochondrial uncoupling, activating mitochondria-associated AMPK to suppress Palmitic acid (PA) (HY-N0830)-induced lipid deposition in hepatocytes .
    AMPK activator 15
  • HY-W018555
    D-Cysteine

    		Endogenous Metabolite Bacterial Infection Neurological Disease
    D-Cysteine is the D-isomer of cysteine and a powerful inhibitor of Escherichia coli growth. D-cysteine is mediated by D-amino acid oxidase to produce H2S and is a neuroprotectant against cerebellar ataxias. D-Cysteine could inhibit the growth and cariogenic virulence of dual-species biofilms formed by S. mutans and S. sanguinis [2] .
    D-Cysteine
  • HY-15035
    S-Diclofenac

    ACS 15; ATB-337

    		 COX Inflammation/Immunology
    S-Diclofenac is a hybrid molecule of an H2S donor and the NSAID diclofenac. S-Diclofenac spares the gastric mucosa of injury despite markedly suppressing prostaglandin synthesis .
    S-Diclofenac
  • HY-B0380B
    Trimebutine (3-TCBS)

    GIC-1001

    		 Others Others
    Trimebutine 3-TCBS (GIC-1001) is an innovative formulation designed to release hydrogen sulfide (H2S) in vivo. This compound combines trimebutine with an H2S-releasing antagonist (phenyl 3-thiocarbamate) and exhibits enhanced anti-nociceptive effects in a mouse colonic distension model, superior to conventional trimebutine. GIC-1001 can reduce visceral pain and discomfort associated with lumen distension in a dose-dependent manner, showing potential superiority .
    Trimebutine (3-TCBS)
  • HY-E70078
    Cystathionine β-synthase

    		Biochemical Assay Reagents Others
    Cystathionine β-synthase is an enzyme that catalyzes the condensation of serine and homocysteine to water and cystathionine. Cystathionine β-synthase is a prominent enzyme for the production of hydrogen sulfide (H2S) .
    Cystathionine β-synthase
  • 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 .
    L-Cysteine hydrochloride hydrate
  • 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].
    L-Cysteine-d3
  • 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].
    L-Cysteine-d2
  • 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].
    L-Cysteine-15N
  • 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].
    L-Cysteine-13C3
  • 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 .
    L-Cysteine hydrochloride hydrate (Standard)
  • 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].
    L-Cysteine-3-13C
  • 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].
    L-Cysteine-1-13C
  • 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].
    L-Cysteine-13C3,15N
  • 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].
    L-Cysteine-d3,15N
  • HY-15026
    ATB 429

    		Endogenous Metabolite Inflammation/Immunology
    ATB-429, a novel H2S-releasing derivative of mesalamine, demonstrates significant anti-nociceptive and anti-inflammatory effects in models of irritable bowel syndrome (IBS). By releasing hydrogen sulfide (H2S), ATB-429 modulates colorectal distension-induced hypersensitivity in both healthy and postcolitic rats. It attenuates abdominal withdrawal responses and suppresses spinal c-Fos mRNA expression, indicating its potential to alleviate pain associated with gastrointestinal inflammation. Moreover, ATB-429 down-regulates colonic cyclooxygenase-2 and interleukin-1β mRNA expression, effects not observed with mesalamine alone. The mechanism involves ATP-sensitive K+ (KATP) channels, as evidenced by reversal of ATB-429's effects with glibenclamide. These findings suggest ATB-429 could offer therapeutic benefits for managing painful intestinal disorders linked to inflammation .
    ATB 429
  • HY-110128
    Sulfidefluor 7-AM

    SF7-AM

    		 Fluorescent Dye Others
    Sulfidefluor 7-AM is a stable hydrogen sulphide (H2S) fluorescent probe . Sulfidefluor 7-AM is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    Sulfidefluor 7-AM
  • HY-W001538
    S-Propargylcysteine

    SPRC

    		 STAT MDM-2/p53 Inflammation/Immunology
    S-Propargylcysteine (SPRC), a structural analog of S-allyl cysteine (SAC), is a slow H2S-releasing compound. S-Propargylcysteine reduces Ca 2+ accumulation and inflammatory cytokines, inhibits STAT3, and elevates p53 and Bax. S-Propargylcysteine has anti-inflammatory activity and protects mice against acute pancreatitis. S-Propargylcysteine also has cardioprotective, neuroprotective acitivties [2].
    S-Propargylcysteine
  • 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) [2] .
    L-Cysteine hydrochloride
  • HY-128206
    I3MT-3
    4 Publications Verification

    HMPSNE

    		 Hippo (MST) Metabolic Disease
    I3MT-3 (HMPSNE) is a potent, selective, and cell-membrane permeable inhibitor of 3-Mercaptopyruvate sulfurtransferase (3MST) (IC50=2.7 μM). I3MT-3 is inactive for other H2S/sulfane sulfur-producing enzymes.?I3MT-3 targets a persulfurated cysteine residue located in the active site of 3MST .
    I3MT-3
  • HY-106784A
    (E)-Ajoene

    		Others Neurological Disease
    (E)-Ajoene is a oxygenated ajoene and organosulfur compound, which can be acquired via allicin decomposing. The polysulfides from garlic can be converted by human red blood cells into hydrogen sulfide (H2S) and allyl glutathione. (E)-Ajoene has been proved to show neuroprotective effects against ischemic damage. (E)-Ajoene is orally active to inhibit lipid peroxidation. (E)-Ajoene increases the number of cresyl violet-positive neurons and decreases the number of reactive gliosis in the CA1 region [2].
    (E)-Ajoene
  • HY-162944
    NA-Ir

    		Ferroptosis Mitochondrial Metabolism STING Autophagy Cancer
    NA-Ir is a Ferroptosis inducer. NA-Ir targets mitochondrial DNA (mtDNA) and activates the cGAS-STING pathway to induce ferritinophagy (Autophagy), while also generating reactive oxygen species (ROS) through photodynamic therapy (PDT), depleting glutathione (GSH), and downregulating glutathione peroxidase 4 (GPX4), thereby triggering lipid peroxidation and Ferroptosis. NA-Ir exhibits higher anticancer activity under light exposure and selectively inhibits cancer cells with high H2S levels .
    NA-Ir
  • 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) [2] [4].
    L-Cysteine hydrochloride (Standard)
  • HY-W103170
    1,8-Dichloroanthraquinone

    		Bacterial Others
    1,8-Dichloroanthraquinone, an anthraquinone, is an inhibitor of sulfide production by sulfate-reducing bacteria .
    1,8-Dichloroanthraquinone
  • HY-B1223
    Anethole trithione
    2 Publications Verification

    		 mAChR Neurological Disease Cancer
    Anethole trithione, a sulfur heterocyclic choleretic, is a bile secretion-stimulating agent. Anethole trithione enhances salivary secretion and increases mAChRs, and can be used for dry mouth research [2].
    Anethole trithione
  • HY-115681
    (2R/S)-6-PNG
    1 Publications Verification

    6-Prenylnaringenin; (±)-6-Prenylnaringenin

    		 Calcium Channel Neurological Disease
    (2R/S)-6-PNG (6-Prenylnaringenin) is a potent and reversible Cav3.2 T-type Ca 2+ channels (T-channels) blocker. (2R/S)-6-PNG can penetrate the blood-brain barrier (BBB). (2R/S)-6-PNG suppresses neuropathic and visceral pain in mice .
    (2R/S)-6-PNG
  • HY-115681R
    (2R/S)-6-PNG (Standard)

    		Calcium Channel Neurological Disease
    (2R/S)-6-PNG (Standard) is the analytical standard of (2R/S)-6-PNG. This product is intended for research and analytical applications. (2R/S)-6-PNG (6-Prenylnaringenin) is a potent and reversible Cav3.2 T-type Ca2+ channels (T-channels) blocker. (2R/S)-6-PNG can penetrate the blood-brain barrier (BBB). (2R/S)-6-PNG suppresses neuropathic and visceral pain in mice .
    (2R/S)-6-PNG (Standard)

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