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Results for "

O-Methyltransferase

" in MedChemExpress (MCE) Product Catalog:

By Targets:	COMT (17) 5-HT Receptor (4) Adrenergic Receptor (2) Apoptosis (2) Biochemical Assay Reagents (1) CD38 (1) CFTR (2) Dopamine Receptor (5) Endogenous Metabolite (10) Ferroportin (1) Fluorescent Dye (1) Isotope-Labeled Compounds (4) MMP (1) Monoamine Oxidase (1) Nucleoside Antimetabolite/Analog (2) Vasopressin Receptor (1)
By Research Areas:	Cancer (3) Cardiovascular Disease (2) Infection (1) Inflammation/Immunology (3) Metabolic Disease (4) Neurological Disease (24)
Oligonucleotides:	Nucleosides and their Analogs (1)

Inhibitors & Agonists

Fluorescent Dye

Peptides

Natural
Products

Recombinant Proteins

Isotope-Labeled Compounds

Antibodies

Oligonucleotides

Targets Recommended: Histone Methyltransferase DNA Methyltransferase COMT ICMT METTL3

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-E70007

*Catechol O-methyltransferase, porcine liver* COMT	Endogenous Metabolite	Neurological Disease
Catechol O-methyltransferase, porcine liver (COMT), the magnesium-dependent transfer of methyl groups from S-adenosyl methionine to a hydroxyl group on dopamine, converting it to 3-methoxytyramine. Catechol O-methyltransferase has two forms in tissues, a soluble form (S-COMT) and a membrane-bound form (MB-COMT). Catechol O-methyltransferase is to regulate epinephrine, norepinephrine, and dopamine levels in the brain .

HY-E70081

mRNA Cap 2'-O-methyltransferase	Biochemical Assay Reagents	Others
mRNA Cap 2'-O-methyltransferase uses S-adenosylmethionine (SAM) as a methyl donor to add a methyl group at the 2'-O position of the first nucleotide at the 5’ end of Cap-0 mRNA, resulting in Cap-1 structure. Cap-1 structure promotes translation efficiency, increasing subsequent protein expression .

HY-B1473A

Serotonin Maximum Cited Publications 7 Publications Verification 5-Hydroxytryptamine; 5-HT	5-HT Receptor COMT Endogenous Metabolite	Neurological Disease
Serotonin is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin is also a catechol O-methyltransferase (COMT) inhibitor with a K_i of 44 μM.

HY-B1473

Serotonin hydrochloride Maximum Cited Publications 7 Publications Verification 5-Hydroxytryptamine hydrochloride; 5-HT hydrochloride	5-HT Receptor COMT Endogenous Metabolite	Neurological Disease
Serotonin (5-Hydroxytryptamine) hydrochloride is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin hydrochloride is also a catechol O-methyltransferase (COMT) inhibitor with a K_i of 44 μM.

HY-N6010

8-Hydroxybergapten	Others	Others
8-hydroxybergapten is O-methylated by cell-free extracts of Ruta cells to isopimpinellin, in reactions mediated by discrete O-methyltransferases. 8-hydroxybergapten has excellent anti-wrinkle effect .

HY-W013260

2'-O-Methylguanosine	Apoptosis Nucleoside Antimetabolite/Analog	Metabolic Disease
2'-O-Methylguanosine is a modified nucleoside produced in tRNAs by the action of tRNA guanosine-2’-O-methyltransferase. 2'-O-Methylguanosine results in apoptotic changes of cells .

HY-B1473AS

Serotonin-d4 5-Hydroxytryptamine-d₄; 5-HT-d₄	Isotope-Labeled Compounds 5-HT Receptor COMT Endogenous Metabolite	Neurological Disease
Serotonin-d₄ is deuterium labeled Serotonin. Serotonin is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin is also a catechol O-methyltransferase (COMT) inhibitor with a Ki of 44 μM.

HY-B1481

Isoetharine mesylate Isoetarine mesylate	Adrenergic Receptor	Cardiovascular Disease Inflammation/Immunology
Isoetharine (Isoetarine) mesylate is an orally active selective agonist of β-adrenergic receptors. Isoetharine mesylate is a catechol-like agent and catechol O-methyltransferase (COMT) mediates its methylation. Isoetharine mesylate can promote the production of cAMP which stimulates the relaxation of smooth muscle cells and can be used as an emphysema, bronchitis and bronchodilator .

HY-B1481A

Isoetharine Isoetarine	Adrenergic Receptor	Cardiovascular Disease Inflammation/Immunology
Isoetharine (Isoetarine) is an orally active selective agonist of β-adrenergic receptors. Isoetharine is a catechol-like agent and catechol O-methyltransferase (COMT) mediates its methylation. Isoetharine can promote the production of cAMP which stimulates the relaxation of smooth muscle cells and can be used as an emphysema, bronchitis and bronchodilator .

HY-W013260S1

2'-O-Methylguanosine-d3	Isotope-Labeled Compounds Apoptosis Nucleoside Antimetabolite/Analog	Others
2'-O-Methylguanosine-d₃ is deuterium labeled 2'-O-Methylguanosine (HY-W013260). 2'-O-Methylguanosine is a modified nucleoside produced in tRNAs by the action of tRNA guanosine-2’-O-methyltransferase. 2'-O-Methylguanosine results in apoptotic changes of cells.

HY-B1473S

Serotonin-d4 hydrochloride 5-Hydroxytryptamine-d₄ hydrochloride; 5-HT-d₄ hydrochloride	Isotope-Labeled Compounds	Others
Serotonin-d₄ (5-Hydroxytryptamine-d₄) hydrochlorideis the deuterium labeledSerotonin (hydrochloride)(HY-B1473) . Serotonin (5-Hydroxytryptamine) hydrochloride is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin hydrochloride is also a catechol O-methyltransferase (COMT) inhibitor with a K_i of 44 μM .

HY-W012264

3-O-Methyldopa monohydrate 3-Methoxy-L-tyrosine monohydrate; 3-O-Methyl-L-DOPA monohydrate	Others	Neurological Disease
3-O-Methyldopa monohydrate (3-Methoxy-L-tyrosine monohydrate) is a significant metabolite of L-DOPA produced through the action of catechol O-methyltransferase (COMT). Unlike its precursor, 3-O-Methyldopa does not serve as a substrate or inhibitor of L-amino acid decarboxylase activity. Additionally, the inhibition of COMT can amplify the anti-Parkinson effects of L-DOPA.

HY-W174489

N-Benzenesulfonyltryptamine	Others	Others
N-Benzenesulfonyltryptamine is an inhibitor of *Hydroxyindole-O-methyltransferase* (HIOMT)** .

HY-125339

Ro 41-0960	COMT	Neurological Disease
Ro 41-0960 is a selective catechol-O-methyltransferase(COMT) inhibitor .

HY-119224

BIA 3-335	COMT	Neurological Disease
BIA 3-335 is an inhibitor for *catechol-O-methyltransferase* (COMT)**, and can be used in research about Parkinson's disease .

HY-121949

U-0521	Others	Neurological Disease
U-0521 is the inhibitor of the catechol-O-methyltransferase (COMT). U-0521 has the potential for the research of Parkinson's disease .

HY-100562

Flopropione	5-HT Receptor COMT	Neurological Disease
Flopropione is a 5-HT receptor antagonist and also a *catechol-o-methyltransferase* (COMT)** inhibitor . Flopropione also as an antispasmodic agent .

HY-157719

S-Adenosylhomocysteine sulfoxide	COMT	Others
S-Adenosylhomocysteine sulfoxide is an inhibitor of catechol-O-methyltransferase (COMT) with an IC₅₀ value of 860 μM. S-Adenosylhomocysteine sulfoxide can be used in the research of methylation reaction modulators .

HY-19061

CGP 28014	Others	Neurological Disease
CGP 28014 is a *catechol-O-methyltransferase* inhibitor. CGP 28014 can lower HVA levels and increase DOPAC levels in the striatum of rats, making it useful for research on Parkinson's disease .

HY-139089

(Z)-Entacapone	Others	Metabolic Disease
(Z)-Entacapone is a metabolite of the catechol-O-methyltransferase (COMT) inhibitor Entacapone (HY-14280). It is also a potential impurity found in commercial preparations of Entacapone and a degradant of Entacapone formed by UV light exposure.

HY-14896

Opicapone 3 Publications Verification BIA 9-1067	COMT	Neurological Disease
Opicapone (BIA 9-1067) is a potent third-generation catechol-O-methyltransferase (COMT) inhibitor for the research of Parkinson's disease and motor fluctuations. Opicapone decreases the ATP content of the cells with an IC₅₀ of 98 μM .

HY-113468A

3-O-Methyldopa 3-Methoxy-L-tyrosine; 3-O-Methyl-L-DOPA	Dopamine Receptor Endogenous Metabolite	Neurological Disease
3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine .

HY-D2344

3-BTD 3-Benzothiazole-daphnetin	Fluorescent Dye	Others
3-BTD (3-Benzothiazole-daphnetin) is a Catechol-O-methyltransferase (COMT) two-photon fluorescence probe. 3-BTD can also be used for biological imaging of endogenous COMT in living cells and tissue sections .

HY-106842

Nitecapone OR-462	COMT	Neurological Disease Inflammation/Immunology
Nitecapone (OR-462) is an orally active and short-acting *catechol-O-methyltransferase* (COMT)** inhibitor with gastroprotective and antioxidant properties. Nitecapone (OR-462) scavenges reactive oxygen and nitric radicals and prevents lipid peroxidation .

HY-100959

3,5-Dinitrocatechol OR-486; 3,5-Dinitropyrocatechol	Others	Neurological Disease
3,5-Dinitrocatechol (OR-486) is a potent *catechol-O-methyltransferase* inhibitor, with an IC₅₀ of 12 nM. 3,5-Dinitrocatechol can be used in the preparation of the molybdenum (VI)- 3,5-Dinitrocatechol complex .

HY-106405

Nebicapone BIA 3-202	COMT	Metabolic Disease
Nebicapone (BIA 3-202), a reversible *catechol-O-methyltransferase* (COMT)** inhibitor, is mainly metabolized by glucuronidation. Nebicapone is mainly peripherally acting inhibitor that decreases the biotransformation of L-DOPA to 3-O-methyl-DOPA by inhibition of COMT, and it is potential for the treatment of Parkinson's disease .

HY-14896R

Opicapone (Standard)	COMT	Neurological Disease
Opicapone (Standard) is the analytical standard of Opicapone. This product is intended for research and analytical applications. Opicapone (BIA 9-1067) is a potent third-generation catechol-O-methyltransferase (COMT) inhibitor for the research of Parkinson's disease and motor fluctuations. Opicapone decreases the ATP content of the cells with an IC₅₀ of 98 μM .

HY-113468AS

3-O-Methyldopa-d3 3-Methoxy-L-tyrosine-d₃; 3-O-Methyl-L-DOPA-d₃	Dopamine Receptor Endogenous Metabolite	Neurological Disease
3-O-Methyldopa-d₃ is deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].

HY-113468AS1

3-O-Methyldopa-d3 hydrate 3-Methoxy-L-tyrosine-d₃ hydrate; 3-O-Methyl-L-DOPA-d₃ hydrate	Isotope-Labeled Compounds Dopamine Receptor Endogenous Metabolite	Neurological Disease
3-O-Methyldopa-d₃ (hydrate) is the deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].

HY-133068

5-Hydroxyferulic acid	COMT Endogenous Metabolite	Others
5-Hydroxyferulic acid is a hydroxycinnamic acid and is a metabolite of the phenylpropanoid pathway. 5-Hydroxyferulic acid is a precursor in the biosynthesis of sinapic acid and is also a COMT non-esterifed substrate .

HY-W401531S

(R)-3-O-Methyldopa-d3	Dopamine Receptor Endogenous Metabolite	Neurological Disease
(R)-3-O-Methyldopa-d₃ is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].

HY-W401531S1

(R)-3-O-Methyldopa-d3 hydrochloride	Dopamine Receptor Endogenous Metabolite	Neurological Disease
(R)-3-O-Methyldopa-d₃ (hydrochloride) is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].

HY-N10373

Caffeoyl alcohol	Others	Others
Caffeoyl alcohol is a monomer constituting Catechyl lignin. Catechyl lignin is a linear homopolymer of caffeyl alcohol, a natural source of carbon fiber and high-value chemicals .

HY-162760

COMT-IN-1	COMT Monoamine Oxidase	Neurological Disease
COMT-IN-1 (compound C12), a nitrophenolic analogue, is an orally active dopamine metabolic enzyme catechol-O-methyltransferase (COMT) inhibitor with IC₅₀s of 0.37 μM, 95.58 μM and 58.82 μM for COMT, MAO-A and MAO-B, respectively. COMT-IN-1 exhibits chelation with a variety of metal ions. COMT-IN-1 exhibits good BBB permeability. COMT-IN-1 improves dopamine levels and ameliorates MPTP (HY-15608)-induced Parkinson's disease (PD) symptoms in mice .

HY-P1108

Astressin 2B	CFTR	Others
Astressin 2B is a potent and selective corticotropin-releasing factor receptor 2 (CRF2) antagonist, with the IC₅₀ values of 1.3 nM and > 500 nM for CRF2 and CRF1, respectively. Astressin 2B antagonizes CRF2-mediated inhibition of gastric emptying .

HY-P1108A

Astressin 2B TFA	CFTR	Others
Astressin 2B TFA is a potent and selective corticotropin-releasing factor receptor 2 (CRF2) antagonist, with the IC₅₀ values of 1.3 nM and > 500 nM for CRF2 and CRF1, respectively. Astressin 2B TFA antagonizes CRF2-mediated inhibition of gastric emptying .

HY-14280

Entacapone 5 Publications Verification	COMT	Neurological Disease Cancer
Entacapone is a potent, reversible, peripherally acting and orally active *catechol-O-methyltransferase* (COMT) inhibitor. Entacapone inhibits COMT from rat brain, erythrocytes and liver with IC₅₀ values of 10 nM, 20 nM, and 160 nM, respectively. Entacapone is selective for COMT over other catecholamine metabolizing enzymes, including MAO-A, MAO-B, phenolsulphotransferase M (PST-M) and PST-P (IC₅₀s>50 µM). Entacapone can be used for the research of Parkinson's disease . Entacapone serves as a inhibitor of FTO demethylation with an IC₅₀** of 3.5 μM, can be used for the research of metabolic disorders .

HY-14280A

Entacapone sodium salt	COMT	Neurological Disease
Entacapone sodium salt is a potent, reversible, peripherally acting and orally active *catechol-O-methyltransferase* (COMT) inhibitor. Entacapone sodium salt inhibits COMT from rat brain, erythrocytes and liver with IC₅₀ values of 10 nM, 20 nM, and 160 nM, respectively. Entacapone sodium salt is selective for COMT over other catecholamine metabolizing enzymes, including MAO-A, MAO-B, phenolsulphotransferase M (PST-M) and PST-P (IC₅₀s>50 µM). Entacapone sodium salt can be used for the research of Parkinson's disease . Entacapone sodium salt serves as as a inhibit of FTO demethylation with an IC₅₀** of 3.5 μM, can be used for the research of metabolic disorders .

HY-14280S

Entacapone-d10	COMT	Neurological Disease
Entacapone-d₁₀ is the deuterium labeled Entacapone. Entacapone is a potent, reversible, peripherally acting and orally active catechol-O-methyltransferase (COMT) inhibitor. Entacapone inhibits COMT from rat brain, erythrocytes and liver with IC50 values of 10 nM, 20 nM, and 160 nM, respectively. Entacapone is selective for COMT over other catecholamine metabolizing enzymes, including MAO-A, MAO-B, phenolsulphotransferase M (PST-M) and PST-P (IC50s>50 µM). Entacapone can be used for the research of Parkinson's disease[1]. Entacapone serves as a inhibitor of FTO demethylation with an IC50 of 3.5 μM, can be used for the research of metabolic disorders[2].

HY-14280R

Entacapone (Standard)	COMT	Neurological Disease Cancer
Entacapone (Standard) is the analytical standard of Entacapone. This product is intended for research and analytical applications. Entacapone is a potent, reversible, peripherally acting and orally active *catechol-O-methyltransferase* (COMT) inhibitor. Entacapone inhibits COMT from rat brain, erythrocytes and liver with IC₅₀ values of 10 nM, 20 nM, and 160 nM, respectively. Entacapone is selective for COMT over other catecholamine metabolizing enzymes, including MAO-A, MAO-B, phenolsulphotransferase M (PST-M) and PST-P (IC₅₀s>50 µM). Entacapone can be used for the research of Parkinson's disease . Entacapone serves as a inhibitor of FTO demethylation with an IC₅₀** of 3.5 μM, can be used for the research of metabolic disorders .

HY-P4521

*Ac-Pro-Leu-Gly-[(S)-2-mercapto-4-methyl-pentanoyl]-Leu-Gly-OEt*	MMP	Others
Ac-Pro-Leu-Gly-[(S)-2-mercapto-4-methyl-pentanoyl]-Leu-Gly-OEt is a MMP12 substrate, and can be used to detect MMP12 enzyme activity .

HY-P3066

SKF 100398 d(CH2)5Tyr(Et)VAVP	Vasopressin Receptor	Metabolic Disease
SKF 100398 (d(CH2)5Tyr(Et)VAVP), an arginine vasopressin (AVP) analogue, is a specific antagonist of the antidiuretic effect of exogenous and endogenous AVP .

HY-P10272

Rusfertide PTG-300	Ferroportin	Others
Rusfertide is a peptide mimetic of natural hepcidin, which targets and degrades ferroportin, reduces serum iron and transferrin-saturation, and thus regulates the production of red blood cells. Rusfertide ameliorates the polycythemia vera, β-thalassemia and hereditary hemochromatosis .

HY-P10563

Noraramtide BHV-1100	CD38	Cancer
Noraramtide (BHV-1100) is an antibody recruitment molecule. Noraramtide can specifically bind to CD38 molecules to recruit natural killer (NK) cells. Noraramtide enhances the ability of NK cells to kill tumor cells through antibody-dependent cellular cytotoxicity (ADCC). This mechanism allows NK cells to more effectively recognize and eliminate tumor cells while avoiding mutual killing between NK cells. Noraramtide can be used for the study of autologous cancer immunity .

Cat. No.	Product Name	Type

HY-D2344

3-BTD 3-Benzothiazole-daphnetin	Dyes
3-BTD (3-Benzothiazole-daphnetin) is a Catechol-O-methyltransferase (COMT) two-photon fluorescence probe. 3-BTD can also be used for biological imaging of endogenous COMT in living cells and tissue sections .

Cat. No.	Product Name	Target	Research Area

HY-P1108A

Astressin 2B TFA	CFTR	Others
Astressin 2B TFA is a potent and selective corticotropin-releasing factor receptor 2 (CRF2) antagonist, with the IC₅₀ values of 1.3 nM and > 500 nM for CRF2 and CRF1, respectively. Astressin 2B TFA antagonizes CRF2-mediated inhibition of gastric emptying .

HY-P3066

SKF 100398 d(CH2)5Tyr(Et)VAVP	Vasopressin Receptor	Metabolic Disease
SKF 100398 (d(CH2)5Tyr(Et)VAVP), an arginine vasopressin (AVP) analogue, is a specific antagonist of the antidiuretic effect of exogenous and endogenous AVP .

HY-P10272

Rusfertide PTG-300	Ferroportin	Others
Rusfertide is a peptide mimetic of natural hepcidin, which targets and degrades ferroportin, reduces serum iron and transferrin-saturation, and thus regulates the production of red blood cells. Rusfertide ameliorates the polycythemia vera, β-thalassemia and hereditary hemochromatosis .

HY-P5416

GGASCCLYCRCH	Peptides	Others
GGASCCLYCRCH is a biological active peptide. (can inhibit the 2-O-methyltransferase activity of the SARS-CoV complex nsp16/10)

HY-P4756

*N-(2-Carbamoyl-ethyl)-Val-Leu-anilide*	Peptides	Others
N-(2-Carbamoyl-ethyl)-Val-Leu-anilide is a polypeptide that can be found by peptide screening. Peptide screening is a research tool that pools active peptides primarily by immunoassay. Peptide screening can be used for protein interaction, functional analysis, epitope screening, especially in the field of agent research and development .

HY-P1108

Astressin 2B	CFTR	Others
Astressin 2B is a potent and selective corticotropin-releasing factor receptor 2 (CRF2) antagonist, with the IC₅₀ values of 1.3 nM and > 500 nM for CRF2 and CRF1, respectively. Astressin 2B antagonizes CRF2-mediated inhibition of gastric emptying .

HY-P2592

Ro 23-7014	Peptides	Others
Ro 23-7014 is an appetite suppressant. Ro 23-7014 is an analog of cholecystokinin (CCK-7) .

HY-P4521

*Ac-Pro-Leu-Gly-[(S)-2-mercapto-4-methyl-pentanoyl]-Leu-Gly-OEt*	MMP	Others
Ac-Pro-Leu-Gly-[(S)-2-mercapto-4-methyl-pentanoyl]-Leu-Gly-OEt is a MMP12 substrate, and can be used to detect MMP12 enzyme activity .

HY-125628

Kahalalide A	Peptides	Infection
Kahalalide A is an anti-mycobacterial compound with antimicrobial activity. Kahalalide A is derived from the marine mollusk Elysia rufescens. Kahalalide A has attracted extensive attention in natural product research due to its potential medicinal value .

HY-P10563

Noraramtide BHV-1100	CD38	Cancer
Noraramtide (BHV-1100) is an antibody recruitment molecule. Noraramtide can specifically bind to CD38 molecules to recruit natural killer (NK) cells. Noraramtide enhances the ability of NK cells to kill tumor cells through antibody-dependent cellular cytotoxicity (ADCC). This mechanism allows NK cells to more effectively recognize and eliminate tumor cells while avoiding mutual killing between NK cells. Noraramtide can be used for the study of autologous cancer immunity .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-E70007

*Catechol O-methyltransferase, porcine liver* COMT	Structural Classification Natural Products Neurological Disease Classification of Application Fields Source classification Endogenous metabolite Disease Research Fields	Endogenous Metabolite
Catechol O-methyltransferase, porcine liver (COMT), the magnesium-dependent transfer of methyl groups from S-adenosyl methionine to a hydroxyl group on dopamine, converting it to 3-methoxytyramine. Catechol O-methyltransferase has two forms in tissues, a soluble form (S-COMT) and a membrane-bound form (MB-COMT). Catechol O-methyltransferase is to regulate epinephrine, norepinephrine, and dopamine levels in the brain .

HY-B1473A

Serotonin 5+ Cited Publications 5-Hydroxytryptamine; 5-HT	Alkaloids Structural Classification Microorganisms Endogenous metabolite Indole Alkaloids	5-HT Receptor COMT Endogenous Metabolite
Serotonin is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin is also a catechol O-methyltransferase (COMT) inhibitor with a K_i of 44 μM.

HY-B1473

Serotonin hydrochloride 5+ Cited Publications 5-Hydroxytryptamine hydrochloride; 5-HT hydrochloride	Alkaloids Structural Classification Source classification Endogenous metabolite Indole Alkaloids	5-HT Receptor COMT Endogenous Metabolite
Serotonin (5-Hydroxytryptamine) hydrochloride is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin hydrochloride is also a catechol O-methyltransferase (COMT) inhibitor with a K_i of 44 μM.

HY-N6010

8-Hydroxybergapten	Monophenols Classification of Application Fields Source classification Other Diseases Coumarins Phenols Phenylpropanoids Plants Umbelliferae Kleinia odora (Forssk.) DC. Disease Research Fields	Others
8-hydroxybergapten is O-methylated by cell-free extracts of Ruta cells to isopimpinellin, in reactions mediated by discrete O-methyltransferases. 8-hydroxybergapten has excellent anti-wrinkle effect .

HY-100562

Flopropione	Entada phaseoloides (L.) Merr. Neurological Disease Classification of Application Fields Labiatae Source classification Phenols Polyphenols Plants Disease Research Fields	5-HT Receptor COMT
Flopropione is a 5-HT receptor antagonist and also a *catechol-o-methyltransferase* (COMT)** inhibitor . Flopropione also as an antispasmodic agent .

HY-113468A

3-O-Methyldopa 3-Methoxy-L-tyrosine; 3-O-Methyl-L-DOPA	Structural Classification Monophenols Ketones, Aldehydes, Acids Source classification Phenols Endogenous metabolite	Dopamine Receptor Endogenous Metabolite
3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine .

HY-133068

5-Hydroxyferulic acid	Structural Classification other families Classification of Application Fields Ketones, Aldehydes, Acids Source classification Other Diseases Phenols Polyphenols Plants Disease Research Fields	COMT Endogenous Metabolite
5-Hydroxyferulic acid is a hydroxycinnamic acid and is a metabolite of the phenylpropanoid pathway. 5-Hydroxyferulic acid is a precursor in the biosynthesis of sinapic acid and is also a COMT non-esterifed substrate .

HY-N10373

Caffeoyl alcohol	Structural Classification Leguminosae Source classification Phenols Polyphenols Plants Medicago sativa L.	Others
Caffeoyl alcohol is a monomer constituting Catechyl lignin. Catechyl lignin is a linear homopolymer of caffeyl alcohol, a natural source of carbon fiber and high-value chemicals .

Species:	Human (2)
Tag:	His (2)
Source:	Sf9 insect cells (1) E. coli (1)

Cat. No.	Compare	Product Name	Species	Source

HY-P72149

	COMT Protein, Human (His) Catechol O Methyltransferase; Catechol O-Methyltransferase; COMT; COMT_HUMAN; EC 2.1.1.6	Human	E. coli
	Catechol-O-methyltransferase (COMT) plays a crucial role by catalyzing and inactivating the O-methylation of catecholamine neurotransmitters and catechol hormones. This enzyme activity is critical for regulating the biological half-life of key neuroactive compounds, including catecholamines. COMT Protein, Human (His) is the recombinant human-derived COMT protein, expressed by E. coli , with N-6*His labeled tag. The total length of COMT Protein, Human (His) is 220 a.a., with molecular weight of 25-28 kDa.

HY-P74230

	COMT Protein, Human (sf9, His) Catechol O-Methyltransferase; COMT	Human	Sf9 insect cells
	Catechol-O-methyltransferase (COMT) plays a crucial role by catalyzing and inactivating the O-methylation of catecholamine neurotransmitters and catechol hormones. This enzyme activity is critical for regulating the biological half-life of key neuroactive compounds, including catecholamines. COMT Protein, Human (sf9, His) is the recombinant human-derived COMT protein, expressed by Sf9 insect cells , with C-His labeled tag. The total length of COMT Protein, Human (sf9, His) is 221 a.a., with molecular weight of ~20.3 kDa.

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HY-B1473AS

Serotonin-d4
Serotonin-d₄ is deuterium labeled Serotonin. Serotonin is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin is also a catechol O-methyltransferase (COMT) inhibitor with a Ki of 44 μM.

HY-B1473S

Serotonin-d4 hydrochloride
Serotonin-d₄ (5-Hydroxytryptamine-d₄) hydrochlorideis the deuterium labeledSerotonin (hydrochloride)(HY-B1473) . Serotonin (5-Hydroxytryptamine) hydrochloride is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin hydrochloride is also a catechol O-methyltransferase (COMT) inhibitor with a K_i of 44 μM .

HY-113468AS

3-O-Methyldopa-d3
3-O-Methyldopa-d₃ is deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].

HY-14280S

Entacapone-d10

Entacapone-d₁₀ is the deuterium labeled Entacapone. Entacapone is a potent, reversible, peripherally acting and orally active catechol-O-methyltransferase (COMT) inhibitor. Entacapone inhibits COMT from rat brain, erythrocytes and liver with IC50 values of 10 nM, 20 nM, and 160 nM, respectively. Entacapone is selective for COMT over other catecholamine metabolizing enzymes, including MAO-A, MAO-B, phenolsulphotransferase M (PST-M) and PST-P (IC50s>50 µM). Entacapone can be used for the research of Parkinson's disease[1]. Entacapone serves as a inhibitor of FTO demethylation with an IC50 of 3.5 μM, can be used for the research of metabolic disorders[2].

HY-113468AS1

3-O-Methyldopa-d3 hydrate
3-O-Methyldopa-d₃ (hydrate) is the deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].

HY-W401531S

(R)-3-O-Methyldopa-d3
(R)-3-O-Methyldopa-d₃ is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].

HY-W401531S1

(R)-3-O-Methyldopa-d3 hydrochloride
(R)-3-O-Methyldopa-d₃ (hydrochloride) is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].

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HY-P82269

	COMT Antibody (YA2014) Catechol O Methyltransferase; COMT	WB, IHC-P	Human, Mouse, Rat
	COMT Antibody (YA2014) is a rabbit-derived non-conjugated IgG antibody (Clone NO.: YA2014), targeting COMT, with a predicted molecular weight of 30 kDa (observed band size: 24,28 kDa). COMT Antibody (YA2014) can be used for WB, IHC-P experiment in human, mouse, rat background.

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HY-W013260

2'-O-Methylguanosine		Nucleosides and their Analogs
2'-O-Methylguanosine is a modified nucleoside produced in tRNAs by the action of tRNA guanosine-2’-O-methyltransferase. 2'-O-Methylguanosine results in apoptotic changes of cells .

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