3-(2-Chlorophenyl)-5-methylisoxazole-4-carboxamide CAS 53013-51-7

Purity 97%+In StockPharmaceutical Standards
CAS No.53013-51-7
Molecular FormulaC11H9ClN2O2
Molecular Weight236.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(2-Chlorophenyl)-5-methylisoxazole-4-carboxamide CAS 53013-51-7 chemical structure

Description

3-(2-Chlorophenyl)-5-methylisoxazole-4-carboxamide (CAS 53013-51-7) is a high-purity analytical reference standard with the molecular formula C11H9ClN2O2 and a molecular weight of 236.65 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 3-(2-Chlorophenyl)-5-methylisoxazole-4-carboxamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 236.65 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.

As a certified reference material (CRM), 3-(2-Chlorophenyl)-5-methylisoxazole-4-carboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC11H9ClN2O2
Molecular Weight236.65 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
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.)1972
Halogen ContentCl-containing
Nitrogen Atoms2

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