Pyrazolo[1,5-a]pyrimidine-5-carbonitrile CAS 864439-29-2

Description

The occurrence of Pyrazolo[1,5-a]pyrimidine-5-carbonitrile is closely related to a nitrile group, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Pyrazolo[1,5-a]pyrimidine-5-carbonitrile (CAS 864439-29-2), molecular formula C7H4N4 and molecular weight 144.13 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Pyrazolo[1,5-a]pyrimidine-5-carbonitrile (C7H4N4) contains a nitrile group, an aromatic ring system. 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 144.13 g/mol, it falls into the low-molecular-weight range. 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).

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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