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Pharmacopeial Impurities (EP / USP / BP)

Clozapine EP Impurity B

Reference StandardAvailable on request

Buy Clozapine EP Impurity B (CAS 263366-81-0) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
Clozapine EP Impurity B chemical structure
CAS number263366-81-0
FormulaC30H24Cl2N6
Molar mass539.5 g/mol
Physical formSolid
HS code38229090
InChIKeyIDGKXLZQFLSYEI-UHFFFAOYSA-N
IUPAC name3-chloro-6-[4-(3-chloro-11H-benzo[b][1,4]benzodiazepin-6-yl)piperazin-1-yl]-11H-benzo[b][1,4]benzodiazepine

About Clozapine EP Impurity B

Zemixal lists Clozapine EP Impurity B for laboratories that identify, quantify or control Clozapine and its related substances. Identity at a glance (Reference Standard): CAS 263366-81-0, formula C30H24Cl2N6 and molar mass 539.5 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • 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 Clozapine

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

Clozapine standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Clozapine EP Impurity B
Product nameClozapine EP Impurity B
Catalogue numberZX-021285
CAS number263366-81-0
IUPAC name3-chloro-6-[4-(3-chloro-11H-benzo[b][1,4]benzodiazepin-6-yl)piperazin-1-yl]-11H-benzo[b][1,4]benzodiazepine
Molecular formulaC30H24Cl2N6
Molar mass539.5 g/mol
Exact mass538.144
GradeReference Standard
Physical formSolid
XLogP36.1
H-bond donors / acceptors2 / 4
Topological polar surface area55.3 Ų
HS code38229090
InChIKeyIDGKXLZQFLSYEI-UHFFFAOYSA-N
SMILESC1CN(CCN1C2=NC3=C(C=CC(=C3)Cl)NC4=CC=CC=C42)C5=NC6=C(C=CC(=C6)Cl)NC7=CC=CC=C75
PubChem CID135398959
SynonymsClozapine - Impurity B, 11,11'-(Piperazine-1,4-diyl)-bis-8-chloro-5H-dibenze[b,e][1,4]-diazepine, 1,4-Bis(8-chloro-5H-dibenzo[b,e][1,4]diazepin-11-yl)piperazine, N-Desmethyl 8-Chloro-5H-dibenzo[b,e][1,4]diazepine Clozapine, 11,11-(Piperazine-1,4-diyl)bis(8-chloro-5H-dibenzo(b,E)(1,4)diazepine), Clozapine Impurity B, 11,11'-(Piperazine-1,4-diyl)bis(8-chloro-5H-dibenzo[b,e][1,4]-diazepine), 11,11'-(Piperazine-1,4-diyl)-bis-8-chloro-5H-dibenze[b,e][1,4]diazepine, 11,11'-(Piperazine-1,4-diyl)bis(8-chloro-10H-dibenzo[b,e][1,4]diazepine)

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 Clozapine 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 Clozapine EP Impurity B

Which CAS number identifies Clozapine EP Impurity B?
Clozapine EP Impurity B is registered under CAS 263366-81-0. You may also see it listed as Clozapine - Impurity B, 11,11'-(Piperazine-1,4-diyl)-bis-8-chloro-5H-dibenze[b,e][1,4]-diazepine, 1,4-Bis(8-chloro-5H-dibenzo[b,e][1,4]diazepin-11-yl)piperazine. Our catalogue number for this item is ZX-021285.
What are the formula and molar mass of Clozapine EP Impurity B?
For Clozapine EP Impurity B, its formula is C30H24Cl2N6 and its molar mass is 539.5 g/mol. The systematic (IUPAC) name is 3-chloro-6-[4-(3-chloro-11H-benzo[b][1,4]benzodiazepin-6-yl)piperazin-1-yl]-11H-benzo[b][1,4]benzodiazepine. InChIKey IDGKXLZQFLSYEI-UHFFFAOYSA-N lets you match it in any structure database.
How is Clozapine EP Impurity B used in pharmaceutical QC?
Clozapine EP Impurity B is a characterised reference material linked to Clozapine. 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 Clozapine 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 Clozapine 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 Clozapine EP Impurity B to my country?
Yes. Clozapine 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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