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Pharmacopeial Impurities (EP / USP / BP)

Nimesulide EP Impurity A

Reference StandardIn stock

Buy Nimesulide EP Impurity A (CAS 51765-56-1) from Zemixal: C13H11N3O7S, COA and SDS with every lot, worldwide shipping.

Pack sizes
Nimesulide EP Impurity A chemical structure
CAS number51765-56-1
FormulaC13H11N3O7S
Molar mass353.31 g/mol
Physical formSolid
HS code38229090
InChIKeyREBQHYRUDRMDOA-UHFFFAOYSA-N
IUPAC nameN-(2,4-dinitro-6-phenoxyphenyl)methanesulfonamide

About Nimesulide EP Impurity A

Analytical teams working on Nimesulide use Nimesulide EP Impurity A as a qualified comparison standard. Identity at a glance (Reference Standard): CAS 51765-56-1, formula C13H11N3O7S and molar mass 353.31 g/mol. It is handled as a solid.

Typical applications

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

Safe handling

It carries the GHS signal word Warning (H302), so wear gloves and eye protection and work with good ventilation.

Standard pack sizes are 10 mg, 25 mg, 50 mg, 100 mg and 250 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Nimesulide

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

Nimesulide standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Nimesulide EP Impurity A
Product nameNimesulide EP Impurity A
Catalogue numberZX-005840
CAS number51765-56-1
IUPAC nameN-(2,4-dinitro-6-phenoxyphenyl)methanesulfonamide
Molecular formulaC13H11N3O7S
Molar mass353.31 g/mol
Exact mass353.0318
GradeReference Standard
Physical formSolid
XLogP32.6
H-bond donors / acceptors1 / 8
Topological polar surface area155 Ų
HS code38229090
InChIKeyREBQHYRUDRMDOA-UHFFFAOYSA-N
SMILESCS(=O)(=O)NC1=C(C=C(C=C1OC2=CC=CC=C2)[N+](=O)[O-])[N+](=O)[O-]
PubChem CID85825034
SynonymsN-(2,4-Dinitro-6-phenoxyphenyl)methanesulphonamide, 4',6'-Dinitro-2'-phenoxymethanesulfonanilide, Nimesulide Impurity A, Methanesulfonamide, N-(2,4-dinitro-6-phenoxyphenyl)-

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

Signal word Warning

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, 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 Nimesulide EP Impurity A
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 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 Nimesulide EP Impurity A

Which CAS number identifies Nimesulide EP Impurity A?
Nimesulide EP Impurity A is registered under CAS 51765-56-1. You may also see it listed as N-(2,4-Dinitro-6-phenoxyphenyl)methanesulphonamide, 4',6'-Dinitro-2'-phenoxymethanesulfonanilide, Nimesulide Impurity A. Our catalogue number for this item is ZX-005840.
What are the formula and molar mass of Nimesulide EP Impurity A?
For Nimesulide EP Impurity A, its formula is C13H11N3O7S and its molar mass is 353.31 g/mol. The systematic (IUPAC) name is N-(2,4-dinitro-6-phenoxyphenyl)methanesulfonamide. InChIKey REBQHYRUDRMDOA-UHFFFAOYSA-N lets you match it in any structure database.
How is Nimesulide EP Impurity A used in pharmaceutical QC?
Nimesulide EP Impurity A is a characterised reference material linked to Nimesulide. 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 Nimesulide EP Impurity A?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Nimesulide EP Impurity A?
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 Nimesulide EP Impurity A to my country?
Yes. Because Nimesulide EP Impurity A 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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