Entecavir Impurity 19 CAS 1030919-51-7

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1030919-51-7
Molecular FormulaC19H21N5O3
Molecular Weight367.40 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Entecavir Impurity 19 CAS 1030919-51-7 chemical structure

Description

Entecavir Impurity 19 (CAS 1030919-51-7) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C19H21N5O3. Molecular weight: 367.40 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC19H21N5O3
Molecular Weight367.40 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
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
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Nitrogen Atoms5

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