Methyl 5-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate CAS 916211-75-1

Description

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.

CATO supplies Methyl 5-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate (CAS 916211-75-1), a certified reference material (molecular formula C9H9N3O2, MW 191.19 g/mol) for analytical method development and quality control.

Structurally, Methyl 5-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate (C9H9N3O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 191.19 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

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