Afatinib Impurity 21 CAS 402855-03-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.402855-03-2
Molecular FormulaC18H16ClFN4O2
Molecular Weight374.80 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Afatinib Impurity 21 CAS 402855-03-2 chemical structure

Description

CATO supplies Afatinib Impurity 21 (CAS 402855-03-2), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C18H16ClFN4O2. Molecular weight: 374.80 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC18H16ClFN4O2
Molecular Weight374.80 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF/Cl-containing
Nitrogen Atoms4

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