1,1-Dioxido-2,3-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 2-chlorobenzoate CAS 343373-87-5

Purity 97%+In StockPharmaceutical Standards
CAS No.343373-87-5
Molecular FormulaC14H11ClO4S2
Molecular Weight342.82 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,1-Dioxido-2,3-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 2-chlorobenzoate CAS 343373-87-5 chemical structure

Description

Structurally, 1,1-Dioxido-2,3-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 2-chlorobenzoate (C14H11ClO4S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 342.82 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.

CATO supplies 1,1-Dioxido-2,3-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 2-chlorobenzoate (CAS 343373-87-5), a certified reference material (molecular formula C14H11ClO4S2, MW 342.82 g/mol) for analytical method development and quality control.

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 1,1-Dioxido-2,3-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 2-chlorobenzoate 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 FormulaC14H11ClO4S2
Molecular Weight342.82 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Sulfur Atoms2

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