2-(2-Chloroacetamido)-N-(4-chlorophenyl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide CAS 721892-21-3

Purity 97%+In StockPharmaceutical Standards
CAS No.721892-21-3
Molecular FormulaC17H16Cl2N2O2S
Molecular Weight383.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(2-Chloroacetamido)-N-(4-chlorophenyl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide CAS 721892-21-3 chemical structure

Description

The occurrence of 2-(2-Chloroacetamido)-N-(4-chlorophenyl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-(2-Chloroacetamido)-N-(4-chlorophenyl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide (CAS 721892-21-3), molecular formula C17H16Cl2N2O2S and molecular weight 383.29 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 2-(2-Chloroacetamido)-N-(4-chlorophenyl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 383.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

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 FormulaC17H16Cl2N2O2S
Molecular Weight383.29 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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