5-Ethynylisoxazole-3-carboxylic acid CAS 89488-59-5

Purity 97%+In StockPharmaceutical Standards
CAS No.89488-59-5
Molecular FormulaC6H3NO3
Molecular Weight137.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Ethynylisoxazole-3-carboxylic acid CAS 89488-59-5 chemical structure

Description

5-Ethynylisoxazole-3-carboxylic acid (CAS 89488-59-5) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C6H3NO3. Molecular weight: 137.09 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.

Physical & Chemical Properties

Molecular FormulaC6H3NO3
Molecular Weight137.09 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982
Nitrogen Atoms1

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