Chlordiazepoxide EP Impurity B

Name: Chlordiazepoxide EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-029641

About Chlordiazepoxide EP Impurity B

Chlordiazepoxide EP Impurity B (CAS 5958-24-7) is a pharmacopeial impurity of Chlordiazepoxide offered by Vaqora Chemicals. With the molecular formula C15H10Cl2N2O, it has a molar mass of 305.2 g/mol. The IUPAC name is 6-chloro-2-(chloromethyl)-3-oxido-4-phenylquinazolin-3-ium. It is also known as Quinozoline Impurity B or Chlordiazepoxide - Impurity B.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

As a characterised impurity of Chlordiazepoxide, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Chlordiazepoxide EP Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Chlordiazepoxide

View every impurity, metabolite and intermediate we list for Chlordiazepoxide.

Chlordiazepoxide impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Chlordiazepoxide EP Impurity B
Catalogue No.	VQ-029641
CAS Number	5958-24-7
IUPAC name	6-chloro-2-(chloromethyl)-3-oxido-4-phenylquinazolin-3-ium
Molecular formula	C₁₅H₁₀Cl₂N₂O
Molecular weight	305.2 g/mol
Exact mass	304.017
Grade	Reference Standard
HSN code	38229090
InChIKey	KFDNKXWSTFABQT-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)C2=[N+](C(=NC3=C2C=C(C=C3)Cl)CCl)[O-]
PubChem CID	112828

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	0 / 2
TPSA	38.4 Å²
Synonyms	Quinozoline Impurity B, Chlordiazepoxide - Impurity B, 6-chloro-2-(chloromethyl)-4-phenylquinazoline 3-oxide, 2-Chloromethyl-4-phenyl-6-chloroquinazoline-3-oxide, 6-chloro-2-(chloromethyl)-4-phenyl-quinazoline, 6-Chloro-2-chloromethyl-4-phenylquinazoline 3-oxide, Quinazoline, 6-chloro-2-(chloromethyl)-4-phenyl-, 3-oxide, 6-Chloro-2-(chloromethyl)-4-phenylquinazoline-3-oxide, 6-Chloro-2-(chloromethyl)-3-oxido-4-phenyl-quinazoline, 6-Chloro-2-(chloromethyl)-3-oxo-4-phenyl-3lambda~5~-quinazoline

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Chlordiazepoxide EP Impurity B?

The CAS Registry Number of Chlordiazepoxide EP Impurity B is 5958-24-7. It is also known as Quinozoline Impurity B, Chlordiazepoxide - Impurity B, 6-chloro-2-(chloromethyl)-4-phenylquinazoline 3-oxide.

What is the molecular formula and molecular weight of Chlordiazepoxide EP Impurity B?

Chlordiazepoxide EP Impurity B has the molecular formula C15H10Cl2N2O and a molecular weight of 305.2 g/mol. Its IUPAC name is 6-chloro-2-(chloromethyl)-3-oxido-4-phenylquinazolin-3-ium.

What is Chlordiazepoxide EP Impurity B used for?

Chlordiazepoxide EP Impurity B is supplied as a characterised reference material related to Chlordiazepoxide. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Chlordiazepoxide EP Impurity B can I order?

We supply Chlordiazepoxide EP Impurity B in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Chlordiazepoxide EP Impurity B?

Yes. Every lot of Chlordiazepoxide EP Impurity B is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Chlordiazepoxide EP Impurity B be shipped internationally?

Yes. Chlordiazepoxide EP Impurity B is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.