methyl 3-chloro-6-methoxy-benzothiophene-2-carboxylate CAS 59812-35-0

Purity 97%+In StockPharmaceutical Standards
CAS No.59812-35-0
Molecular FormulaC11H17ClO3S
Molecular Weight264.77 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

methyl 3-chloro-6-methoxy-benzothiophene-2-carboxylate CAS 59812-35-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 264.77 g/mol gives methyl 3-chloro-6-methoxy-benzothiophene-2-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

methyl 3-chloro-6-methoxy-benzothiophene-2-carboxylate (CAS 59812-35-0) is a high-purity analytical reference standard with the molecular formula C11H17ClO3S and a molecular weight of 264.77 g/mol.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, methyl 3-chloro-6-methoxy-benzothiophene-2-carboxylate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 264.77 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 FormulaC11H17ClO3S
Molecular Weight264.77 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1974
Halogen ContentCl-containing
Sulfur Atoms1

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