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Pharmacopeial Impurities (EP / USP / BP)

Carbamazepine EP Impurity D

Reference StandardAvailable on request

Buy Carbamazepine EP Impurity D (CAS 256-96-2) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
Carbamazepine EP Impurity D chemical structure
CAS number256-96-2
FormulaC14H11N
Molar mass193.24 g/mol
Physical formSolid
HS code38229090
InChIKeyLCGTWRLJTMHIQZ-UHFFFAOYSA-N
IUPAC name11H-benzo[b][1]benzazepine

About Carbamazepine EP Impurity D

Carbamazepine EP Impurity D belongs to the Carbamazepine reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 256-96-2, formula C14H11N and molar mass 193.24 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

Safe handling

Classified under GHS with signal word Warning and hazard statements H302, H317, H400 and H410. 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. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Carbamazepine

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

Carbamazepine 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 Carbamazepine EP Impurity D
Product nameCarbamazepine EP Impurity D
Catalogue numberZX-020118
CAS number256-96-2
IUPAC name11H-benzo[b][1]benzazepine
Molecular formulaC14H11N
Molar mass193.24 g/mol
Exact mass193.0891
GradeReference Standard
Physical formSolid
XLogP34
H-bond donors / acceptors1 / 1
Topological polar surface area12 Ų
HS code38229090
InChIKeyLCGTWRLJTMHIQZ-UHFFFAOYSA-N
SMILESC1=CC=C2C(=C1)C=CC3=CC=CC=C3N2
PubChem CID9212
SynonymsIminostilbene, Oxcarbazepine EP Impurity E, Carbamazepine - Impurity D, Oxcarbazepine - Impurity E, Dibenz(b,f)azepine, 2,2'-Iminostilbene, 2,3,6,7-Dibenzazepine, Stilbene, 2,2'-imino-, Dibenz[b,f]azepine, 5-Azadibenzo[a,e]cycloheptatriene, Dibenzazepine, 5H-Dibenzo[b,f]azepine

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
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Warning

  • H302Harmful if swallowed
  • H317May cause an allergic skin reaction
  • H400Very toxic to aquatic life
  • H410Very toxic to aquatic life with long lasting effects
  • H411Toxic to aquatic life with long lasting effects

Precautionary statements P261, P264, P270, P272, P273, P280, P301 + P317, P302 + P352, P321, P330, P333 + P317, P362 + P364, P391, 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 Carbamazepine EP Impurity D
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 Carbamazepine EP Impurity D

Which CAS number identifies Carbamazepine EP Impurity D?
Carbamazepine EP Impurity D is registered under CAS 256-96-2. You may also see it listed as Iminostilbene, Oxcarbazepine EP Impurity E, Carbamazepine - Impurity D. Our catalogue number for this item is ZX-020118.
What are the formula and molar mass of Carbamazepine EP Impurity D?
For Carbamazepine EP Impurity D, its formula is C14H11N and its molar mass is 193.24 g/mol. The systematic (IUPAC) name is 11H-benzo[b][1]benzazepine. InChIKey LCGTWRLJTMHIQZ-UHFFFAOYSA-N lets you match it in any structure database.
How is Carbamazepine EP Impurity D used in pharmaceutical QC?
Carbamazepine EP Impurity D is a characterised reference material linked to Carbamazepine. 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 Carbamazepine EP Impurity D?
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 Carbamazepine EP Impurity D?
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 Carbamazepine EP Impurity D to my country?
Yes. Because Carbamazepine EP Impurity D 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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