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Pharmacopeial Impurities (EP / USP / BP)

Entacapone EP Impurity G

Reference StandardAvailable on request

Buy Entacapone EP Impurity G (CAS 1364322-41-7) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-021562.

Pack sizes
Entacapone EP Impurity G chemical structure
CAS number1364322-41-7
FormulaC11H9N3O5
Molar mass263.21 g/mol
Physical formSolid
HS code38229090
InChIKeyPJVWDBNDLNEXCN-FARCUNLSSA-N
IUPAC name(E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methylprop-2-enamide

About Entacapone EP Impurity G

Entacapone EP Impurity G is supplied by Zemixal as a characterised reference material for Entacapone analysis. For your records (Reference Standard), the material is defined by CAS 1364322-41-7, formula C11H9N3O5 and molar mass 263.21 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Safe handling

Hazard communication follows GHS (Warning: H315, H319, H361 and H373). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Entacapone

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

Entacapone standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Entacapone EP Impurity G
Product nameEntacapone EP Impurity G
Catalogue numberZX-021562
CAS number1364322-41-7
IUPAC name(E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methylprop-2-enamide
Molecular formulaC11H9N3O5
Molar mass263.21 g/mol
Exact mass263.0542
GradeReference Standard
Physical formSolid
XLogP31.2
H-bond donors / acceptors3 / 6
Topological polar surface area139 Ų
HS code38229090
InChIKeyPJVWDBNDLNEXCN-FARCUNLSSA-N
SMILESCNC(=O)/C(=C/C1=CC(=C(C(=C1)O)O)[N+](=O)[O-])/C#N
PubChem CID71587989
SynonymsEntacapone - Impurity G, (2E)-2-Cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methylprop-2-enamide, 2-Cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methylprop-2-enamide, (2E)-, 2-Propenamide, 2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methyl-, (2E)-, Entacapone impurity G, (E)-2-Cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methylacrylamide, (2E)-2-Cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methyl-prop-2-enamide

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H361Suspected of damaging fertility or the unborn child
  • H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements P203, P260, P264, P264 + P265, P280, P302 + P352, P305 + P351 + P338, P318, P319, P321, P332 + P317, P337 + P317, P362 + P364, P405, 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 Entacapone EP Impurity G
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

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

Questions about Entacapone EP Impurity G

Which CAS number identifies Entacapone EP Impurity G?
Entacapone EP Impurity G is registered under CAS 1364322-41-7. You may also see it listed as Entacapone - Impurity G, (2E)-2-Cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methylprop-2-enamide, 2-Cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methylprop-2-enamide, (2E)-. Our catalogue number for this item is ZX-021562.
What are the formula and molar mass of Entacapone EP Impurity G?
For Entacapone EP Impurity G, its formula is C11H9N3O5 and its molar mass is 263.21 g/mol. The systematic (IUPAC) name is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N-methylprop-2-enamide. InChIKey PJVWDBNDLNEXCN-FARCUNLSSA-N lets you match it in any structure database.
How is Entacapone EP Impurity G used in pharmaceutical QC?
Entacapone EP Impurity G is a characterised reference material linked to Entacapone. 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 Entacapone EP Impurity G?
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 Entacapone EP Impurity G?
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 Entacapone EP Impurity G to my country?
Yes. Because Entacapone EP Impurity G 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.

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