3-methyl-1H,2H,3H,4H-thieno[2,3-d]pyrimidine-2,4-dione CAS 75860-86-5

Description

Compared with other compounds in its class, the molecular weight of 182.20 g/mol gives 3-methyl-1H,2H,3H,4H-thieno[2,3-d]pyrimidine-2,4-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-methyl-1H,2H,3H,4H-thieno[2,3-d]pyrimidine-2,4-dione (CAS 75860-86-5) is a high-purity analytical reference standard with the molecular formula C7H6N2O2S and a molecular weight of 182.20 g/mol.

Based on its molecular formula C7H6N2O2S, 3-methyl-1H,2H,3H,4H-thieno[2,3-d]pyrimidine-2,4-dione contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 182.20 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).

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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