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Pharmacopeial Impurities (EP / USP / BP)

Celecoxib EP Impurity B

Reference StandardAvailable on request

Order Celecoxib EP Impurity B (CAS 331943-04-5) online at Zemixal: C17H14F3N3O2S, COA and SDS with every lot, worldwide shipping.

Pack sizes
Celecoxib EP Impurity B chemical structure
CAS number331943-04-5
FormulaC17H14F3N3O2S
Molar mass381.4 g/mol
Physical formSolid
HS code38229090
InChIKeyLGIMTMFJBCXYRP-UHFFFAOYSA-N
IUPAC name4-[3-(4-methylphenyl)-5-(trifluoromethyl)pyrazol-1-yl]benzenesulfonamide

About Celecoxib EP Impurity B

Celecoxib EP Impurity B belongs to the Celecoxib reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 331943-04-5, formula C17H14F3N3O2S and molar mass 381.4 g/mol. It is handled as a solid.

Typical applications

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

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H302. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Celecoxib

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

Celecoxib 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 Celecoxib EP Impurity B
Product nameCelecoxib EP Impurity B
Catalogue numberZX-020176
CAS number331943-04-5
IUPAC name4-[3-(4-methylphenyl)-5-(trifluoromethyl)pyrazol-1-yl]benzenesulfonamide
Molecular formulaC17H14F3N3O2S
Molar mass381.4 g/mol
Exact mass381.0759
GradeReference Standard
Physical formSolid
XLogP33.4
H-bond donors / acceptors1 / 7
Topological polar surface area86.4 Ų
HS code38229090
InChIKeyLGIMTMFJBCXYRP-UHFFFAOYSA-N
SMILESCC1=CC=C(C=C1)C2=NN(C(=C2)C(F)(F)F)C3=CC=C(C=C3)S(=O)(=O)N
PubChem CID9951856
SynonymsCelecoxib - Impurity B, N-De(4-sulfonamidophenyl)-N'-(4-sulfonamidophenyl) Celecoxib, 4-(3-(p-Tolyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl)benzenesulfonamide, 4-(3-(4-Methylphenyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl)benzenesulfonamide, 4-[3-(4-Methylphenyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl]benzenesulfonamide, Benzenesulfonamide, 4-(3-(4-methylphenyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl)-, 4-[3-(4-Methylphenyl)-5-trifluoromethyl-1H-pyrazol-1-yl]benzenesulfonamide, Celecoxib Impurity B, 4-[3-(4-methylphenyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl]benzene-1-sulfonamide, 4-[3-(p-tolyl)-5-(trifluoromethyl)pyrazol-1-yl]benzenesulfonamide

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 Celecoxib EP Impurity B
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 Celecoxib EP Impurity B

Which CAS number identifies Celecoxib EP Impurity B?
Celecoxib EP Impurity B is registered under CAS 331943-04-5. You may also see it listed as Celecoxib - Impurity B, N-De(4-sulfonamidophenyl)-N'-(4-sulfonamidophenyl) Celecoxib, 4-(3-(p-Tolyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl)benzenesulfonamide. Our catalogue number for this item is ZX-020176.
What are the formula and molar mass of Celecoxib EP Impurity B?
For Celecoxib EP Impurity B, its formula is C17H14F3N3O2S and its molar mass is 381.4 g/mol. The systematic (IUPAC) name is 4-[3-(4-methylphenyl)-5-(trifluoromethyl)pyrazol-1-yl]benzenesulfonamide. InChIKey LGIMTMFJBCXYRP-UHFFFAOYSA-N lets you match it in any structure database.
How is Celecoxib EP Impurity B used in pharmaceutical QC?
Celecoxib EP Impurity B is a characterised reference material linked to Celecoxib. 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 Celecoxib EP Impurity B?
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 Celecoxib EP Impurity B?
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 Celecoxib EP Impurity B to my country?
Yes. Because Celecoxib EP Impurity B 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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