4-Chloro-5-(p-tolyl)thieno[2,3-d]pyrimidine CAS 374104-63-9

Description

Compared with other compounds in its class, the molecular weight of 260.74 g/mol gives 4-Chloro-5-(p-tolyl)thieno[2,3-d]pyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Chloro-5-(p-tolyl)thieno[2,3-d]pyrimidine (CAS 374104-63-9), molecular formula C13H9ClN2S and molecular weight 260.74 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C13H9ClN2S, 4-Chloro-5-(p-tolyl)thieno[2,3-d]pyrimidine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 260.74 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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), 4-Chloro-5-(p-tolyl)thieno[2,3-d]pyrimidine 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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