Letrozole EP Impurity B CAS 113402-31-6

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.113402-31-6
Molecular FormulaC22H13N3
Molecular Weight319.36 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Letrozole EP Impurity B CAS 113402-31-6 chemical structure

Description

Letrozole EP Impurity B (CAS 113402-31-6) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C22H13N3. Molecular weight: 319.36 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.

Physical & Chemical Properties

Molecular FormulaC22H13N3
Molecular Weight319.36 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)18.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms3

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