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SML0150

Sigma-Aldrich

Tolcapone

≥98% (HPLC)

Synonym(s):

3,4-Dihydroxy-4′-methyl-5-nitrobenzophenone, Ro 40-7592

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About This Item

Empirical Formula (Hill Notation):
C14H11NO5
CAS Number:
134308-13-7
Molecular Weight:
273.24
MDL number:
MFCD00866569
UNSPSC Code:
12352200
PubChem Substance ID:
329825198
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

storage condition

desiccated

color

yellow

solubility

DMSO: ≥15 mg/mL

originator

Roche

storage temp.

2-8°C

SMILES string

Cc1ccc(cc1)C(=O)c2cc(O)c(O)c(c2)[N+]([O-])=O

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

Gene Information

human ... COMT(1312)

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Application

Tolcapone may be used in COMT-mediated cell signaling studies.
Tolcapone has been used in methyltransferase assay in human embryonic kidney 293 cells.

Biochem/physiol Actions

Inhibition of catechol-O-methyltransferase by tolcapone increases the half-life and bioavailabilty of levodopa. It therefore is an effective adjunctive therapy in patients with Parkinson′s disease with motor response fluctuations.
Tolcapone is an orally active catechol-O-methyltransferase (COMT) inhibitor. It inhibits both central and peripheral COMT. Tolcapone crosses the blood-brain barrier, and has been used for L-DOPA adjunct therapy in the treatment of Parkinson′s Disease.

Features and Benefits

This compound was developed by Roche. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Pictograms

Environment
GHS09

Signal Word

Warning

Hazard Statements

H400

Precautionary Statements

P273 - P391 - P501

Hazard Classifications

Aquatic Acute 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Daniel D Truong
Clinical interventions in aging, 4, 109-113 (2009-06-09)
Levodopa has been the gold standard therapy for the motor symptoms of Parkinson's disease for more than three decades. Although it remains the most effective treatment, its long-term use is associated with motor fluctuations and dyskinesias that can be disabling
Development of an HTRF assay for the detection and characterization of inhibitors of catechol-O-methyltransferase
Kimos M, et al.
Journal of Biomolecular Screening, 21, 490-495 (2016)
Mikael Palner et al.
Nuclear medicine and biology, 37(7), 837-843 (2010-09-28)
R-[(11)C]-SKF 82957 is a high-affinity and potent dopamine D(1) receptor agonist radioligand, which gives rise to a brain-penetrant lipophilic metabolite. In this study, we demonstrate that systemic administration of catechol-O-methyl transferase (COMT) inhibitors blocks this metabolic pathway, facilitating the use
Inès Khsime et al.
International journal of molecular sciences, 24(19) (2023-10-14)
L-DOPA, the precursor of catecholamines, exerts a pro-locomotor action in several vertebrate species, including newborn rats. Here, we tested the hypothesis that decreasing the degradation of monoamines can promote the pro-locomotor action of a low, subthreshold dose of L-DOPA in
Saviana Di Giovanni et al.
The Journal of biological chemistry, 285(20), 14941-14954 (2010-02-13)
Parkinson disease (PD) is the second most common neurodegenerative disorder after Alzheimer disease (AD). There is considerable consensus that the increased production and/or aggregation of alpha-synuclein (alpha-syn) plays a central role in the pathogenesis of PD and related synucleinopathies. Current
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