Tolcapone

Name: Tolcapone
Brand: Zemixal
SKU: ZX-027321

Reference StandardAvailable on request

Order Tolcapone (CAS 134308-13-7) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes

CAS number134308-13-7

FormulaC₁₄H₁₁NO₅

Molar mass273.24 g/mol

Physical formSolid

HS code38229090

InChIKeyMIQPIUSUKVNLNT-UHFFFAOYSA-N

IUPAC name(3,4-dihydroxy-5-nitrophenyl)-(4-methylphenyl)methanone

About Tolcapone

Tolcapone belongs to the Tolcapone reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 134308-13-7, formula C14H11NO5 and molar mass 273.24 g/mol. It is handled as a solid.

Use cases we see most often

Identification & assay
Method development & validation
QC reference material

Safe handling

It carries the GHS signal word Warning (H400), so wear gloves and eye protection and work with good ventilation.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Tolcapone

See every impurity, metabolite and related compound we list for this API.

Tolcapone standards

Typical uses

Identification & assay
Method development & validation
QC reference material

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Tolcapone
Product name	Tolcapone
Catalogue number	ZX-027321
CAS number	134308-13-7
IUPAC name	(3,4-dihydroxy-5-nitrophenyl)-(4-methylphenyl)methanone
Molecular formula	C₁₄H₁₁NO₅
Molar mass	273.24 g/mol
Exact mass	273.0637
Grade	Reference Standard
Physical form	Solid
XLogP3	3.3
H-bond donors / acceptors	2 / 5
Topological polar surface area	103 Å²
HS code	38229090
InChIKey	MIQPIUSUKVNLNT-UHFFFAOYSA-N
SMILES	CC1=CC=C(C=C1)C(=O)C2=CC(=C(C(=C2)O)O)[N+](=O)[O-]
PubChem CID	4659569
Synonyms	3,4-Dihydroxy-4'-methyl-5-nitrobenzophenone, (3,4-Dihydroxy-5-nitrophenyl)(4-methylphenyl)methanone, Methanone, (3,4-dihydroxy-5-nitrophenyl)(4-methylphenyl)-, 5-(4-methylbenzoyl)-3-nitrobenzene-1,2-diol, 3,4-dihydroxy-5-nitro-4'-methylbenzophenone, 4'-methyl-3,4-dihydroxy-5-nitrobenzophenone, 5-((4-methylphenyl)carbonyl)-3-nitrobenzene-1,2-diol, Methanone,(3,4-dihydroxy-5-nitrophenyl)(4-methylphenyl)-, (3,4-dihydroxy-5-nitrophenyl)(p-tolyl)methanone, 3,4-dihydroxy-4 inverted exclamation mark -methyl-5-nitrobenzophenone, Talcapone

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Hazardous to the environment

Signal word Warning

H400Very toxic to aquatic life

Precautionary statements P273, P391, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Tolcapone
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Tolcapone

Which CAS number identifies Tolcapone?

Tolcapone is registered under CAS 134308-13-7. You may also see it listed as 3,4-Dihydroxy-4'-methyl-5-nitrobenzophenone, (3,4-Dihydroxy-5-nitrophenyl)(4-methylphenyl)methanone, Methanone, (3,4-dihydroxy-5-nitrophenyl)(4-methylphenyl)-. Our catalogue number for this item is ZX-027321.

What are the formula and molar mass of Tolcapone?

For Tolcapone, its formula is C14H11NO5 and its molar mass is 273.24 g/mol. The systematic (IUPAC) name is (3,4-dihydroxy-5-nitrophenyl)-(4-methylphenyl)methanone. InChIKey MIQPIUSUKVNLNT-UHFFFAOYSA-N lets you match it in any structure database.

How is Tolcapone used in pharmaceutical QC?

Tolcapone is a characterised reference material linked to Tolcapone. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Tolcapone?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Tolcapone?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Tolcapone to my country?

Yes. Because Tolcapone is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

More Tolcapone standards

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Bulk CAS lookup Open quote list