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Pharmacopeial Impurities (EP / USP / BP)

Clemastine EP Impurity B

Reference StandardAvailable on request

Order Clemastine EP Impurity B (CAS 1352549-49-5) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes
Clemastine EP Impurity B chemical structure
CAS number1352549-49-5
FormulaC21H26ClNO
Molar mass343.9 g/mol
Physical formSolid
HS code38229090
InChIKeyHWYKTWVEFMQZJW-BPGUCPLFSA-N
IUPAC name4-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]-1-methylazepane

About Clemastine EP Impurity B

Clemastine EP Impurity B is supplied by Zemixal as a characterised reference material for Clemastine analysis. For your records (Reference Standard), the material is defined by CAS 1352549-49-5, formula C21H26ClNO and molar mass 343.9 g/mol. It is handled as a solid.

Where it is used

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

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 Clemastine

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

Clemastine 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 Clemastine EP Impurity B
Product nameClemastine EP Impurity B
Catalogue numberZX-023977
CAS number1352549-49-5
IUPAC name4-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]-1-methylazepane
Molecular formulaC21H26ClNO
Molar mass343.9 g/mol
Exact mass343.1703
GradeReference Standard
Physical formSolid
XLogP35
H-bond donors / acceptors0 / 2
Topological polar surface area12.5 Ų
HS code38229090
InChIKeyHWYKTWVEFMQZJW-BPGUCPLFSA-N
SMILESC[C@@](C1=CC=CC=C1)(C2=CC=C(C=C2)Cl)OC3CCCN(CC3)C
PubChem CID176482482
SynonymsClemastine Fumarate - Impurity B, 4-((R)-1-(4-chlorophenyl)-1-phenylethoxy)-1-methylazepane, 4-[(1R)-1-(4-Chlorophenyl)-1-phenylethoxy]hexahydro-1-methyl-1H-azepine, 1H-Azepine, 4-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]hexahydro-1-methyl-

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

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Clemastine 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 Clemastine EP Impurity B

Which CAS number identifies Clemastine EP Impurity B?
Clemastine EP Impurity B is registered under CAS 1352549-49-5. You may also see it listed as Clemastine Fumarate - Impurity B, 4-((R)-1-(4-chlorophenyl)-1-phenylethoxy)-1-methylazepane, 4-[(1R)-1-(4-Chlorophenyl)-1-phenylethoxy]hexahydro-1-methyl-1H-azepine. Our catalogue number for this item is ZX-023977.
What are the formula and molar mass of Clemastine EP Impurity B?
For Clemastine EP Impurity B, its formula is C21H26ClNO and its molar mass is 343.9 g/mol. The systematic (IUPAC) name is 4-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]-1-methylazepane. InChIKey HWYKTWVEFMQZJW-BPGUCPLFSA-N lets you match it in any structure database.
How is Clemastine EP Impurity B used in pharmaceutical QC?
Clemastine EP Impurity B is a characterised reference material linked to Clemastine. 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 Clemastine 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 Clemastine 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 Clemastine EP Impurity B to my country?
Yes. Clemastine EP Impurity B ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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