Methyl 4-chloro-3-hydroxy-5-(methylthio)thiophene-2-carboxylate CAS 104386-68-7

Purity 97%+In StockPharmaceutical Standards
CAS No.104386-68-7
Molecular FormulaC7H7ClO3S2
Molecular Weight238.71 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 4-chloro-3-hydroxy-5-(methylthio)thiophene-2-carboxylate CAS 104386-68-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 238.71 g/mol gives Methyl 4-chloro-3-hydroxy-5-(methylthio)thiophene-2-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Methyl 4-chloro-3-hydroxy-5-(methylthio)thiophene-2-carboxylate (CAS 104386-68-7), a certified reference material (molecular formula C7H7ClO3S2, MW 238.71 g/mol) for analytical method development and quality control.

Based on its molecular formula C7H7ClO3S2, Methyl 4-chloro-3-hydroxy-5-(methylthio)thiophene-2-carboxylate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 238.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), Methyl 4-chloro-3-hydroxy-5-(methylthio)thiophene-2-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC7H7ClO3S2
Molecular Weight238.71 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, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Halogen ContentCl-containing
Sulfur Atoms2

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