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Pharmacopeial Impurities (EP / USP / BP)

Clotrimazole EP Impurity B

Reference StandardAvailable on request

Buy Clotrimazole EP Impurity B (CAS 23593-71-7) from Zemixal: C22H17ClN2, COA and SDS with every lot, worldwide shipping.

Pack sizes
Clotrimazole EP Impurity B chemical structure
CAS number23593-71-7
FormulaC22H17ClN2
Molar mass344.8 g/mol
Physical formSolid
HS code38229090
InChIKeyBLNLHAFFGFCSRK-UHFFFAOYSA-N
IUPAC name1-[(4-chlorophenyl)-diphenylmethyl]imidazole

About Clotrimazole EP Impurity B

Clotrimazole EP Impurity B belongs to the Clotrimazole reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 23593-71-7, formula C22H17ClN2 and molar mass 344.8 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

It carries the GHS signal word Warning (H302, H315, H319 and H335), so wear gloves and eye protection and work with good ventilation.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a certificate of analysis with characterisation data with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Clotrimazole

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

Clotrimazole standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Clotrimazole EP Impurity B
Product nameClotrimazole EP Impurity B
Catalogue numberZX-021274
CAS number23593-71-7
IUPAC name1-[(4-chlorophenyl)-diphenylmethyl]imidazole
Molecular formulaC22H17ClN2
Molar mass344.8 g/mol
Exact mass344.108
GradeReference Standard
Physical formSolid
XLogP35
H-bond donors / acceptors0 / 1
Topological polar surface area17.8 Ų
HS code38229090
InChIKeyBLNLHAFFGFCSRK-UHFFFAOYSA-N
SMILESC1=CC=C(C=C1)C(C2=CC=CC=C2)(C3=CC=C(C=C3)Cl)N4C=CN=C4
PubChem CID13073877
SynonymsClotrimazole - Impurity B, 1-((4-Chlorophenyl)diphenylmethyl)-1H-imidazole, 1-[(4-Chlorophenyl)diphenylmethyl]-1H-imidazole, CDD-3532, 1-((p-Chlorophenyl)diphenylmethyl)imidazole, 1H-Imidazole, 1-((4-chlorophenyl)diphenylmethyl)-, 1-[(p-Chlorophenyl)diphenylmethyl]imidazole, para-Clotrimazole Isomer, Clotrimazole Impurity B, Clotrimazole Impurity A, CDD 3532, Clotrimazole-001

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
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation
  • H413May cause long lasting harmful effects to aquatic life

Precautionary statements P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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 Clotrimazole 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 Clotrimazole EP Impurity B

Which CAS number identifies Clotrimazole EP Impurity B?
Clotrimazole EP Impurity B is registered under CAS 23593-71-7. You may also see it listed as Clotrimazole - Impurity B, 1-((4-Chlorophenyl)diphenylmethyl)-1H-imidazole, 1-[(4-Chlorophenyl)diphenylmethyl]-1H-imidazole. Our catalogue number for this item is ZX-021274.
What are the formula and molar mass of Clotrimazole EP Impurity B?
For Clotrimazole EP Impurity B, its formula is C22H17ClN2 and its molar mass is 344.8 g/mol. The systematic (IUPAC) name is 1-[(4-chlorophenyl)-diphenylmethyl]imidazole. InChIKey BLNLHAFFGFCSRK-UHFFFAOYSA-N lets you match it in any structure database.
How is Clotrimazole EP Impurity B used in pharmaceutical QC?
Clotrimazole EP Impurity B is a characterised reference material linked to Clotrimazole. 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 Clotrimazole 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 Clotrimazole 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 Clotrimazole EP Impurity B to my country?
Yes. Because Clotrimazole 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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