2-(Hydroxymethyl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide CAS 13947-20-1

Purity 97%+In StockPharmaceutical Standards
CAS No.13947-20-1
Molecular FormulaC8H7NO4S
Molecular Weight213.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(Hydroxymethyl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide CAS 13947-20-1 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO supplies 2-(Hydroxymethyl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide (CAS 13947-20-1), a certified reference material (molecular formula C8H7NO4S, MW 213.21 g/mol) for analytical method development and quality control.

Based on its molecular formula C8H7NO4S, 2-(Hydroxymethyl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 213.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

As a certified reference material (CRM), 2-(Hydroxymethyl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide 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 FormulaC8H7NO4S
Molecular Weight213.21 g/mol
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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1960
Nitrogen Atoms1
Sulfur Atoms1

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