3-Methyl-5-oxoisoxazole-2(5H)-carboxamide CAS 77643-86-8

Purity 97%+In StockPharmaceutical Standards
CAS No.77643-86-8
Molecular FormulaC5H6N2O3
Molecular Weight142.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Methyl-5-oxoisoxazole-2(5H)-carboxamide CAS 77643-86-8 chemical structure

Description

3-Methyl-5-oxoisoxazole-2(5H)-carboxamide (CAS 77643-86-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C5H6N2O3. Molecular weight: 142.11 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC5H6N2O3
Molecular Weight142.11 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1979
Nitrogen Atoms2

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