1,2-Benzisoxazole-3-carboxylicacidethylester CAS 40991-36-4

Purity 97%+In StockPharmaceutical Standards
CAS No.40991-36-4
Molecular FormulaC10H9NO2S
Molecular Weight207.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,2-Benzisoxazole-3-carboxylicacidethylester CAS 40991-36-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 207.25 g/mol gives 1,2-Benzisoxazole-3-carboxylicacidethylester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 1,2-Benzisoxazole-3-carboxylicacidethylester (CAS 40991-36-4), a certified reference material (molecular formula C10H9NO2S, MW 207.25 g/mol) for analytical method development and quality control.

1,2-Benzisoxazole-3-carboxylicacidethylester (C10H9NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 1,2-Benzisoxazole-3-carboxylicacidethylester 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 FormulaC10H9NO2S
Molecular Weight207.25 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968
Nitrogen Atoms1
Sulfur Atoms1

Related Benzisoxazole Standards

Recommended Standards

Why CATO?