3,4-Dichloroisothiazolo[4,5-d]isothiazole CAS 2120-83-4

Purity 97%+In StockPharmaceutical Standards
CAS No.2120-83-4
Molecular FormulaC4Cl2N2S2
Molecular Weight211.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-Dichloroisothiazolo[4,5-d]isothiazole CAS 2120-83-4 chemical structure

Description

3,4-Dichloroisothiazolo[4,5-d]isothiazole (C4Cl2N2S2) contains a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO supplies 3,4-Dichloroisothiazolo[4,5-d]isothiazole (CAS 2120-83-4), a certified reference material (molecular formula C4Cl2N2S2, MW 211.09 g/mol) for analytical method development and quality control.

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

CATO manufactures 3,4-Dichloroisothiazolo[4,5-d]isothiazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC4Cl2N2S2
Molecular Weight211.09 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, 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
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms2

Recommended Standards

Why CATO?