1-(2-Chlorophenyl)-6-methyl-1,2-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one CAS 5334-46-3

Description

1-(2-Chlorophenyl)-6-methyl-1,2-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (C12H9ClN4O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

1-(2-Chlorophenyl)-6-methyl-1,2-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 5334-46-3), molecular formula C12H9ClN4O and molecular weight 260.68 g/mol, is a CATO reference standard with documented purity and traceability.

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.

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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