3-(3-Methylphenyl)-2-sulfanylidene-1H,2H,3H,4H-thieno[3,2-d]pyrimidin-4-one CAS 1154244-40-2

Description

The occurrence of 3-(3-Methylphenyl)-2-sulfanylidene-1H,2H,3H,4H-thieno[3,2-d]pyrimidin-4-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-(3-Methylphenyl)-2-sulfanylidene-1H,2H,3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 1154244-40-2), molecular formula C13H10N2OS2 and molecular weight 274.36 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 3-(3-Methylphenyl)-2-sulfanylidene-1H,2H,3H,4H-thieno[3,2-d]pyrimidin-4-one is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 274.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 3-(3-Methylphenyl)-2-sulfanylidene-1H,2H,3H,4H-thieno[3,2-d]pyrimidin-4-one 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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