4-((2,5-Dichlorophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide CAS 339019-24-8

Purity 97%+In StockPharmaceutical Standards
CAS No.339019-24-8
Molecular FormulaC13H10Cl2O2S3
Molecular Weight365.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-((2,5-Dichlorophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide CAS 339019-24-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 365.32 g/mol gives 4-((2,5-Dichlorophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-((2,5-Dichlorophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide (CAS 339019-24-8) is a high-purity analytical reference standard with the molecular formula C13H10Cl2O2S3 and a molecular weight of 365.32 g/mol.

4-((2,5-Dichlorophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide (C13H10Cl2O2S3) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC13H10Cl2O2S3
Molecular Weight365.32 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Sulfur Atoms3

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