4-Chloro-6-ethyl-2-(methylthio)thieno[2,3-d]pyrimidine CAS 900463-12-9

Description

The occurrence of 4-Chloro-6-ethyl-2-(methylthio)thieno[2,3-d]pyrimidine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Chloro-6-ethyl-2-(methylthio)thieno[2,3-d]pyrimidine (CAS 900463-12-9) is a high-purity analytical reference standard with the molecular formula C9H9ClN2S2 and a molecular weight of 244.76 g/mol.

Based on its molecular formula C9H9ClN2S2, 4-Chloro-6-ethyl-2-(methylthio)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 244.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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