4-((4-Chlorophenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide CAS 339019-07-7

Purity 97%+In StockPharmaceutical Standards
CAS No.339019-07-7
Molecular FormulaC13H11ClO2S3
Molecular Weight330.87 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-((4-Chlorophenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide CAS 339019-07-7 chemical structure

Description

4-((4-Chlorophenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide (CAS 339019-07-7) is a high-purity analytical reference standard with the molecular formula C13H11ClO2S3 and a molecular weight of 330.87 g/mol.

Structurally, 4-((4-Chlorophenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide (C13H11ClO2S3) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 330.87 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures 4-((4-Chlorophenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide 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 FormulaC13H11ClO2S3
Molecular Weight330.87 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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