Ethyl 2-acetamido-6-formyl-7-(phenylthio)-4,5-dihydrobenzo[b]thiophene-3-carboxylate CAS 137987-69-0

Purity 97%+In StockPharmaceutical Standards
CAS No.137987-69-0
Molecular FormulaC20H19NO4S2
Molecular Weight401.50 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-acetamido-6-formyl-7-(phenylthio)-4,5-dihydrobenzo[b]thiophene-3-carboxylate CAS 137987-69-0 chemical structure

Description

The occurrence of Ethyl 2-acetamido-6-formyl-7-(phenylthio)-4,5-dihydrobenzo[b]thiophene-3-carboxylate is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Ethyl 2-acetamido-6-formyl-7-(phenylthio)-4,5-dihydrobenzo[b]thiophene-3-carboxylate (CAS 137987-69-0), a certified reference material (molecular formula C20H19NO4S2, MW 401.50 g/mol) for analytical method development and quality control.

The molecular framework of Ethyl 2-acetamido-6-formyl-7-(phenylthio)-4,5-dihydrobenzo[b]thiophene-3-carboxylate (C20H19NO4S2) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing 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).

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 Ethyl 2-acetamido-6-formyl-7-(phenylthio)-4,5-dihydrobenzo[b]thiophene-3-carboxylate 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 FormulaC20H19NO4S2
Molecular Weight401.50 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Nitrogen Atoms1
Sulfur Atoms2

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