Methyl 4-chloro-5-(ethylthio)-3-hydroxythiophene-2-carboxylate CAS 1707372-13-1

Description

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.

Methyl 4-chloro-5-(ethylthio)-3-hydroxythiophene-2-carboxylate (CAS 1707372-13-1), molecular formula C8H9ClO3S2 and molecular weight 252.74 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Methyl 4-chloro-5-(ethylthio)-3-hydroxythiophene-2-carboxylate (C8H9ClO3S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 252.74 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

CATO manufactures Methyl 4-chloro-5-(ethylthio)-3-hydroxythiophene-2-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

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