7-Oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid CAS 1239955-68-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1239955-68-0
Molecular FormulaC9H8O3S
Molecular Weight196.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid CAS 1239955-68-0 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 7-Oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid.

7-Oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid (CAS 1239955-68-0) is a high-purity analytical reference standard with the molecular formula C9H8O3S and a molecular weight of 196.22 g/mol.

The molecular framework of 7-Oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid (C9H8O3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 7-Oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid 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 FormulaC9H8O3S
Molecular Weight196.22 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Sulfur Atoms1

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