Flomoxef Impurity 4 CAS 72591-95-8

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.72591-95-8
Molecular FormulaC22H21ClN2O5
Molecular Weight428.87 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Flomoxef Impurity 4 CAS 72591-95-8 chemical structure

Description

Flomoxef Impurity 4 (CAS 72591-95-8) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C22H21ClN2O5. Molecular weight: 428.87 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC22H21ClN2O5
Molecular Weight428.87 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore in a cool place (≤25°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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1977
Halogen ContentCl-containing
Nitrogen Atoms2

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