Ethyl 4-(3-chlorothiophene-2-carbonyl)isoxazole-3-carboxylate CAS 338982-48-2

Purity 97%+In StockPharmaceutical Standards
CAS No.338982-48-2
Molecular FormulaC11H8ClNO4S
Molecular Weight285.70 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 4-(3-chlorothiophene-2-carbonyl)isoxazole-3-carboxylate CAS 338982-48-2 chemical structure

Description

CATO supplies Ethyl 4-(3-chlorothiophene-2-carbonyl)isoxazole-3-carboxylate (CAS 338982-48-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C11H8ClNO4S. Molecular weight: 285.70 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC11H8ClNO4S
Molecular Weight285.70 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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