2-(Prop-2-yn-1-yl)-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide CAS 20044-78-4

Purity 97%+In StockPharmaceutical Standards
CAS No.20044-78-4
Molecular FormulaC10H9NO2S
Molecular Weight207.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(Prop-2-yn-1-yl)-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide CAS 20044-78-4 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 2-(Prop-2-yn-1-yl)-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide.

CATO supplies 2-(Prop-2-yn-1-yl)-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide (CAS 20044-78-4), a certified reference material (molecular formula C10H9NO2S, MW 207.25 g/mol) for analytical method development and quality control.

Based on its molecular formula C10H9NO2S, 2-(Prop-2-yn-1-yl)-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 207.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), 2-(Prop-2-yn-1-yl)-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 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.)1962
Nitrogen Atoms1
Sulfur Atoms1

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