Topotecan Impurity 4 CAS 1398723-05-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1398723-05-1
Molecular FormulaC23H23N3O6
Molecular Weight437.45 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Topotecan Impurity 4 CAS 1398723-05-1 chemical structure

Description

Topotecan Impurity 4 (CAS 1398723-05-1) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C23H23N3O6. Molecular weight: 437.45 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC23H23N3O6
Molecular Weight437.45 g/mol
AppearancePale yellow to yellow crystalline powder
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
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms3

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