5-Ethyl-6-methyl-2-(o-tolyl)thieno[2,3-d]pyrimidine-4-thiol CAS 917749-37-2

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Ethyl-6-methyl-2-(o-tolyl)thieno[2,3-d]pyrimidine-4-thiol.

CATO supplies 5-Ethyl-6-methyl-2-(o-tolyl)thieno[2,3-d]pyrimidine-4-thiol (CAS 917749-37-2), a certified reference material (molecular formula C16H16N2S2, MW 300.44 g/mol) for analytical method development and quality control.

Structurally, 5-Ethyl-6-methyl-2-(o-tolyl)thieno[2,3-d]pyrimidine-4-thiol (C16H16N2S2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 300.44 g/mol, it falls into the moderately-high-molecular-weight range. 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.

As a certified reference material (CRM), 5-Ethyl-6-methyl-2-(o-tolyl)thieno[2,3-d]pyrimidine-4-thiol 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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