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Pharmacopeial Impurities (EP / USP / BP)

Temazepam EP Impurity B

Reference StandardAvailable on request

Temazepam EP Impurity B (CAS 604-75-1) supplier Zemixal: C15H11ClN2O2, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-036251.

Pack sizes
Temazepam EP Impurity B chemical structure
CAS number604-75-1
FormulaC15H11ClN2O2
Molar mass286.71 g/mol
Physical formSolid
HS code38229090
InChIKeyADIMAYPTOBDMTL-UHFFFAOYSA-N
IUPAC name7-chloro-3-hydroxy-5-phenyl-1,3-dihydro-1,4-benzodiazepin-2-one

About Temazepam EP Impurity B

Analytical teams working on Temazepam use Temazepam EP Impurity B as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 604-75-1, formula C15H11ClN2O2 and molar mass 286.71 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 (H351), 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 Temazepam

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

Temazepam 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 Temazepam EP Impurity B
Product nameTemazepam EP Impurity B
Catalogue numberZX-036251
CAS number604-75-1
IUPAC name7-chloro-3-hydroxy-5-phenyl-1,3-dihydro-1,4-benzodiazepin-2-one
Molecular formulaC15H11ClN2O2
Molar mass286.71 g/mol
Exact mass286.0509
GradeReference Standard
Physical formSolid
XLogP32.2
H-bond donors / acceptors2 / 3
Topological polar surface area61.7 Ų
HS code38229090
InChIKeyADIMAYPTOBDMTL-UHFFFAOYSA-N
SMILESC1=CC=C(C=C1)C2=NC(C(=O)NC3=C2C=C(C=C3)Cl)O
PubChem CID4616
SynonymsTemazepam - Impurity B, Limbial, Isodin, Hi-Long, (RS)-Oxazepam, Tarchomin, Serenid-D, (+-)-Oxazepam, Anxiolit retard, Tranquo-buscopan-wirkstoff, Z10-Tr, N-Desmethyltemazepam

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

Safety and GHS hazards

GHS08 Health hazard
Health hazard

Signal word Warning

  • H351Suspected of causing cancer

Precautionary statements P203, P280, P318, 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 Temazepam 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 Temazepam EP Impurity B

Which CAS number identifies Temazepam EP Impurity B?
Temazepam EP Impurity B is registered under CAS 604-75-1. You may also see it listed as Temazepam - Impurity B, Limbial, Isodin. Our catalogue number for this item is ZX-036251.
What are the formula and molar mass of Temazepam EP Impurity B?
For Temazepam EP Impurity B, its formula is C15H11ClN2O2 and its molar mass is 286.71 g/mol. The systematic (IUPAC) name is 7-chloro-3-hydroxy-5-phenyl-1,3-dihydro-1,4-benzodiazepin-2-one. InChIKey ADIMAYPTOBDMTL-UHFFFAOYSA-N lets you match it in any structure database.
How is Temazepam EP Impurity B used in pharmaceutical QC?
Temazepam EP Impurity B is a characterised reference material linked to Temazepam. 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 Temazepam 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 Temazepam 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 Temazepam EP Impurity B to my country?
Yes. Because Temazepam 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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