4-Hydroxy-2-mercapto-5-methylpyrido[2,3-d]pyrimidine-7-carboxylic acid CAS 1245570-19-7

Description

Compared with other compounds in its class, the molecular weight of 237.24 g/mol gives 4-Hydroxy-2-mercapto-5-methylpyrido[2,3-d]pyrimidine-7-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Hydroxy-2-mercapto-5-methylpyrido[2,3-d]pyrimidine-7-carboxylic acid (CAS 1245570-19-7), molecular formula C9H7N3O3S and molecular weight 237.24 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Hydroxy-2-mercapto-5-methylpyrido[2,3-d]pyrimidine-7-carboxylic acid (C9H7N3O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 237.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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