2-Acetyl-5-aminoisoxazol-3(2H)-one CAS 1573547-89-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1573547-89-3
Molecular FormulaC5H6N2O3
Molecular Weight142.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Acetyl-5-aminoisoxazol-3(2H)-one CAS 1573547-89-3 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

CATO supplies 2-Acetyl-5-aminoisoxazol-3(2H)-one (CAS 1573547-89-3), a certified reference material (molecular formula C5H6N2O3, MW 142.11 g/mol) for analytical method development and quality control.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 2-Acetyl-5-aminoisoxazol-3(2H)-one is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 142.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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.)1993
Nitrogen Atoms2

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