Tolcapone - ≥99%, high purity , Catechol O-methyltransferase inhibitor, CAS No.134308-13-7, Catechol O-methyltransferase inhibitor

Item Number
T125285
Grouped product items
SKUSizeAvailabilityPrice Qty
T125285-10mg
10mg
In stock
$64.90
T125285-50mg
50mg
In stock
$122.90
T125285-250mg
250mg
In stock
$553.90
T125285-1g
1g
In stock
$1,992.90
T125285-5g
5g
In stock
$8,966.90

Potent, selective, reversible COMT inhibitor

Basic Description

SynonymsNCGC00181767-02 | 5-[(4-METHYLPHENYL)CARBONYL]-3-NITROBENZENE-1,2-DIOL | C07949 | TOLCAPONE (USP MONOGRAPH) | N04BX01 | 5-(4-methylbenzoyl)-3-nitrobenzene-1,2-diol | CAS-134308-13-7 | SR-05000001444 | Tolcapone, >=98% (HPLC) | Tox21_112963 | DB00323 | MFC
Specifications & PurityMoligand™, ≥99%
Biochemical and Physiological MechanismsTolcapone is a orally active inhibitor of peripheral and COMT (central catechol-O-methyltransferase). Antiparkinsonian.Potent, selective, reversible COMT inhibitor (K i = 30 nM). Shows antiparkinsonian effects in vivo. Orally active.
Storage TempStore at 2-8°C
Shipped InWet ice
GradeMoligand™
Action TypeINHIBITOR
Mechanism of actionCatechol O-methyltransferase inhibitor
NoteWherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Product Description

Tolcapone is a selective, potent and reversible of catechol-O-methyl transferase (COMT) inhibitor with Ki of 30 nM.
An inhibitor of peripheral and central catechol-O-methyltransferase.

Product Properties

ALogP3.3

Associated Targets(Human)

TTR Tclin Transthyretin (4 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
COMT Tclin Catechol O-methyltransferase (3 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
ESR1 Tclin Estrogen receptor alpha (17718 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
NR3C1 Tclin Glucocorticoid receptor (14987 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PGR Tclin Progesterone receptor (8562 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRB2 Tclin Beta-2 adrenergic receptor (11824 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CHRM2 Tclin Muscarinic acetylcholine receptor M2 (10671 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRB1 Tclin Beta-1 adrenergic receptor (6630 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR1A Tclin Serotonin 1a (5-HT1a) receptor (14969 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRA2A Tclin Alpha-2a adrenergic receptor (9450 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AR Tclin Androgen Receptor (11781 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
RARA Tclin Retinoic acid receptor alpha (1324 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CHRM1 Tclin Muscarinic acetylcholine receptor M1 (12690 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
DRD2 Tclin Dopamine D2 receptor (23596 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
GABRA1 Tclin GABA receptor alpha-1 subunit (399 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MAOA Tclin Monoamine oxidase A (11911 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CNR1 Tclin Cannabinoid CB1 receptor (20913 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
DRD1 Tclin Dopamine D1 receptor (9720 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
COMT Tclin Catechol O-methyltransferase (404 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PTGS1 Tclin Cyclooxygenase-1 (9233 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC6A2 Tclin Norepinephrine transporter (10102 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HRH2 Tclin Histamine H2 receptor (5428 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR2A Tclin Serotonin 2a (5-HT2a) receptor (14758 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR2C Tclin Serotonin 2c (5-HT2c) receptor (11471 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AVPR2 Tclin Vasopressin V2 receptor (2912 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADORA1 Tclin Adenosine A1 receptor (17603 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AGTR1 Tclin Type-1 angiotensin II receptor (5176 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC6A4 Tclin Serotonin transporter (12625 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRA1A Tclin Alpha-1a adrenergic receptor (8359 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PTGS2 Tclin Cyclooxygenase-2 (13999 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HRH1 Tclin Histamine H1 receptor (7573 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
OPRM1 Tclin Mu opioid receptor (19785 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
DRD3 Tclin Dopamine D3 receptor (14368 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AVPR1A Tclin Vasopressin V1a receptor (5412 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
OPRD1 Tclin Delta opioid receptor (15096 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
OPRK1 Tclin Kappa opioid receptor (16155 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR3A Tclin Serotonin 3a (5-HT3a) receptor (3366 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC6A3 Tclin Dopamine transporter (10535 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
GRIN1 Tclin Glutamate (NMDA) receptor subunit zeta 1 (122 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PPARA Tclin Peroxisome proliferator-activated receptor alpha (9197 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
KCNH2 Tclin HERG (29587 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CACNA1C Tclin Voltage-gated L-type calcium channel alpha-1C subunit (766 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PDE3A Tclin Phosphodiesterase 3A (3309 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC29A1 Tclin Equilibrative nucleoside transporter 1 (1711 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRA2B Tclin Alpha-2b adrenergic receptor (4412 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRA2C Tclin Alpha-2c adrenergic receptor (4876 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CHRM3 Tclin Muscarinic acetylcholine receptor M3 (7750 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR2B Tclin Serotonin 2b (5-HT2b) receptor (10323 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
RARG Tclin Retinoic acid receptor gamma (1154 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
TBXA2R Tclin Thromboxane A2 receptor (5717 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADORA2A Tclin Adenosine A2a receptor (16305 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
RARB Tclin Retinoic acid receptor beta (1232 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID

Associated Targets(non-human)

Mc4r Melanocortin receptor 4 (1205 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Ttr Transthyretin (14 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Npy1r Neuropeptide Y receptor type 1 (8 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Cckar Cholecystokinin A receptor (90 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Pde4d Phosphodiesterase 4D (4 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Hdac6 Histone deacetylase 6 (222 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Canis familiaris (36305 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mus musculus (284745 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Rattus norvegicus (775804 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
BHK-21 (725 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Dengue virus type 2 NS3 protein (2214 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Genome polyprotein (620 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Luciferin 4-monooxygenase (66902 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rep Replicase polyprotein 1ab (378 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
dengue virus type 2 (2400 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Brain (1 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Plasma (328 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID

Mechanisms of Action

Mechanism of ActionAction Typetarget IDTarget NameTarget TypeTarget OrganismBinding Site NameReferences

Names and Identifiers

Pubchem Sid488194951
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488194951
IUPAC Name (3,4-dihydroxy-5-nitrophenyl)-(4-methylphenyl)methanone
INCHI InChI=1S/C14H11NO5/c1-8-2-4-9(5-3-8)13(17)10-6-11(15(19)20)14(18)12(16)7-10/h2-7,16,18H,1H3
InChi Key MIQPIUSUKVNLNT-UHFFFAOYSA-N
Canonical SMILES CC1=CC=C(C=C1)C(=O)C2=CC(=C(C(=C2)O)O)[N+](=O)[O-]
Isomeric SMILES CC1=CC=C(C=C1)C(=O)C2=CC(=C(C(=C2)O)O)[N+](=O)[O-]
RTECS PC4952500
PubChem CID 4659569
Molecular Weight 273.24

Certificates

Certificate of Analysis(COA)

Enter Lot Number to search for COA:

Find and download the COA for your product by matching the lot number on the packaging.

9 results found

Lot NumberCertificate TypeDateItem
E1528014Certificate of AnalysisOct 22, 2024 T125285
E2324331Certificate of AnalysisMar 16, 2023 T125285
E2324333Certificate of AnalysisMar 16, 2023 T125285
E2324336Certificate of AnalysisMar 16, 2023 T125285
E2324339Certificate of AnalysisMar 16, 2023 T125285
E2324340Certificate of AnalysisMar 16, 2023 T125285
E2324343Certificate of AnalysisMar 16, 2023 T125285
E2324348Certificate of AnalysisMar 16, 2023 T125285
L1804110Certificate of AnalysisAug 09, 2022 T125285

Chemical and Physical Properties

SolubilitySoluble in water (partly), DMSO (55 mg/ml at 25 °C), and water (55 mg/ml at 25 °C).
SensitivityHeat Sensitive
Melt Point(°C)145 °C

Safety and Hazards(GHS)

Pictogram(s) GHS09
Signal Warning
Hazard Statements

H400:Very toxic to aquatic life

Precautionary Statements

P273:Avoid release to the environment.

P501:Dispose of contents/container to ...

P391:Collect spillage.

RTECS PC4952500
Merck Index 9508

Related Documents

Citations of This Product

1. Xia Lv, Xin-Xin Wang, Jie Hou, Zhong-Ze Fang, Jing-Jing Wu, Yun-Feng Cao, Shu-Wen Liu, Guang-Bo Ge, Ling Yang.  (2016)  Comparison of the inhibitory effects of tolcapone and entacapone against human UDP-glucuronosyltransferases.  TOXICOLOGY AND APPLIED PHARMACOLOGY,  301  (42).  [PMID:27089846] [10.1016/j.taap.2016.04.009]

References

1. Xia Lv, Xin-Xin Wang, Jie Hou, Zhong-Ze Fang, Jing-Jing Wu, Yun-Feng Cao, Shu-Wen Liu, Guang-Bo Ge, Ling Yang.  (2016)  Comparison of the inhibitory effects of tolcapone and entacapone against human UDP-glucuronosyltransferases.  TOXICOLOGY AND APPLIED PHARMACOLOGY,  301  (42).  [PMID:27089846] [10.1016/j.taap.2016.04.009]

Solution Calculators