Clonazepam Impurity 21 CAS 4306-32-5

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.4306-32-5
Molecular FormulaC8H5Cl3N2O3
Molecular Weight283.50 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Clonazepam Impurity 21 CAS 4306-32-5 chemical structure

Description

Clonazepam Impurity 21 (CAS 4306-32-5) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C8H5Cl3N2O3. Molecular weight: 283.50 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC8H5Cl3N2O3
Molecular Weight283.50 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity≥95%
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentCl-containing
Nitrogen Atoms2

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