Montelukast Impurity 21 CAS 142147-67-9

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.142147-67-9
Molecular FormulaC35H38ClNO3S
Molecular Weight588.20 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Montelukast Impurity 21 CAS 142147-67-9 chemical structure

Description

CATO supplies Montelukast Impurity 21 (CAS 142147-67-9), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C35H38ClNO3S. Molecular weight: 588.20 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC35H38ClNO3S
Molecular Weight588.20 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1997
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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