3-isopropyl-2-mercapto-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one CAS 743452-35-9

Description

The occurrence of 3-isopropyl-2-mercapto-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-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-isopropyl-2-mercapto-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 743452-35-9), molecular formula C11H14N2OS2 and molecular weight 254.37 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-isopropyl-2-mercapto-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 254.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), 3-isopropyl-2-mercapto-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one 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

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