5-(1-Ethyl-5-methyl-1h-pyrazol-4-yl)-1,2-oxazole-3-carboxylic acid CAS 957487-32-0

Purity 97%+In StockPharmaceutical Standards
CAS No.957487-32-0
Molecular FormulaC10H11N3O3
Molecular Weight221.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(1-Ethyl-5-methyl-1h-pyrazol-4-yl)-1,2-oxazole-3-carboxylic acid CAS 957487-32-0 chemical structure

Description

5-(1-Ethyl-5-methyl-1h-pyrazol-4-yl)-1,2-oxazole-3-carboxylic acid (CAS 957487-32-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H11N3O3. Molecular weight: 221.21 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC10H11N3O3
Molecular Weight221.21 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms3

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