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Tolcapone

Tolcapone Structure
CAS No.
134308-13-7
Chemical Name:
Tolcapone
Synonyms
Tasmar;TOLCAPONE;TALCAPONE;ro40-7592;TOLOCAPONE;Tolcapone (200 mg);TolcaponeTolcapone;Tolcapone USP/EP/BP;Tolcapone (1670207);(3,4-Dihydroxy-5-nitrophenyl)
CBNumber:
CB9302569
Molecular Formula:
C14H11NO5
Molecular Weight:
273.24
MOL File:
134308-13-7.mol
Modify Date:
2023/9/20 16:43:00

Tolcapone Properties

Melting point 126-1280C
Boiling point 485.6±45.0 °C(Predicted)
Density 1.419±0.06 g/cm3(Predicted)
storage temp. 2-8°C
solubility DMSO: ≥15mg/mL
pka 4.78±0.38(Predicted)
form powder
color yellow
Stability Stable for 1 year from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 2 months.
CAS DataBase Reference 134308-13-7(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS09
Signal word  Warning
Hazard statements  H400
Precautionary statements  P273
Hazard Codes  N
Risk Statements  50
Safety Statements  61
RIDADR  UN 3077 9 / PGIII
RTECS  PC4952500
HS Code  2914710000
Toxicity mouse,LD50,oral,1600mg/kg (1600mg/kg),BEHAVIORAL: ATAXIABEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION,Yakuri to Chiryo. Pharmacology and Therapeutics. Vol. 24(Suppl,

Tolcapone price More Price(4)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) SML0150 Tolcapone ≥98% (HPLC) 134308-13-7 10MG ₹9212.08 2022-06-14 Buy
Sigma-Aldrich(India) SML0150 Tolcapone ≥98% (HPLC) 134308-13-7 50MG ₹38082.35 2022-06-14 Buy
TCI Chemicals (India) T3856 Tolcapone 134308-13-7 50MG ₹3900 2022-05-26 Buy
TCI Chemicals (India) T3856 Tolcapone 134308-13-7 200MG ₹8900 2022-05-26 Buy
Product number Packaging Price Buy
SML0150 10MG ₹9212.08 Buy
SML0150 50MG ₹38082.35 Buy
T3856 50MG ₹3900 Buy
T3856 200MG ₹8900 Buy

Tolcapone Chemical Properties,Uses,Production

Chemical Properties

Yellow Solid

Uses

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

Preparation

preparation by demethylation of 4-hydroxy-3-methoxy-4′-methyl-5-nitrobenzophenone with hydrobromic acid in refluxing aque-ous acetic acid.

General Description

Tolcapone, 3,4-dihydroxy-4'-methyl-5-nitrobenzophenone (Tasmar), is a yellow, odorless, nonhygroscopic,crystalline compound (pKa=4.78). Tolcapone israpidly absorbed after oral administration. Tolcapone ishighly bound to plasma albumin (>98%), and its distributionis therefore restricted. Tolcapone has low first-pass metabolism.It is almost completely metabolized in the liver before excretion, and 60% is excreted by the kidney. The majormetabolite of tolcapone is an inactive glucuronide conjugate.COMT inhibitors increase chronotropic and arrhythmogeniceffects of epinephrine.Tolcapone is indicated as an adjunctto levodopa/carbidopa for the management of signs andsymptoms of PD.

Tolcapone Preparation Products And Raw materials

Global( 226)Suppliers
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SNA HEALTHCARE PVT LTD +91-8652842416 +91-8652842416 Mumbai, India 88 58 Inquiry
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RA CHEM PHARMA LTD +91-40-4475 8595 New Delhi, India 37 58 Inquiry
CLEANCHEM LABORATORIES LLP +91 98921 69560 New Delhi, India 326 58 Inquiry
Clearsynth Labs 91-22-45045900 Maharashtra, India 3889 58 Inquiry

Tolcapone Spectrum

TOLOCAPONE 3,4-DIHYDROXYL-5-NITROBENZENYL,4-METHYLBENZENYL KETONE, TALCAPONE Tolcapone (200 mg) Methanone, (3,4-dihydroxy-5-nitrophenyl)(4-Methylphenyl)- (3,4-Dihydroxy-5-nitrophenyl)(p-tolyl)methanone 3,4-DIHYDROXYL-5-NITROBENZYL,4'-METHYLBENZENYL KETONE (3,4-Dihydroxy-5-nitrophenyl) TALCAPONE TOLCAPONE (3,4-dihydroxy-5-nitrophenyl)(4-methylphenyl)-methanon (3,4-dihydroxy-5-nitrophenyl)(4-methylphenyl)methanone 3,4-dihydroxy-4’-methyl-5-nitrobenzophenone ro40-7592 TolcaponeTolcapone Tasmar Tolcapone USP/EP/BP TolcaponeQ: What is Tolcapone Q: What is the CAS Number of Tolcapone Q: What is the storage condition of Tolcapone Q: What are the applications of Tolcapone Tolcapone (1670207) 3,4-Dihydroxy-4'-methyl-5-nitrobenzophenone 134308-13-7 Inhibitors API Inhibitor Intermediates & Fine Chemicals Pharmaceuticals Aromatics 134308-13-7