3-Hydroxy-2-methyl-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide CAS 156359-48-7

Purity 97%+In StockPharmaceutical Standards
CAS No.156359-48-7
Molecular FormulaC8H9NO3S
Molecular Weight199.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Hydroxy-2-methyl-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide CAS 156359-48-7 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Hydroxy-2-methyl-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide.

CATO supplies 3-Hydroxy-2-methyl-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide (CAS 156359-48-7), a certified reference material (molecular formula C8H9NO3S, MW 199.23 g/mol) for analytical method development and quality control.

Based on its molecular formula C8H9NO3S, 3-Hydroxy-2-methyl-2,3-dihydrobenzo[d]isothiazole 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 199.23 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).

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-Hydroxy-2-methyl-2,3-dihydrobenzo[d]isothiazole 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 FormulaC8H9NO3S
Molecular Weight199.23 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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2001
Nitrogen Atoms1
Sulfur Atoms1

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