9-(3,4-Dimethylphenyl)pyrazolo[1,5-a][1,2,4]triazolo[3,4-c]pyrazin-3-ol CAS 1255785-56-8

Description

9-(3,4-Dimethylphenyl)pyrazolo[1,5-a][1,2,4]triazolo[3,4-c]pyrazin-3-ol (CAS 1255785-56-8) is a high-purity analytical reference standard with the molecular formula C15H13N5O and a molecular weight of 279.30 g/mol.

Structurally, 9-(3,4-Dimethylphenyl)pyrazolo[1,5-a][1,2,4]triazolo[3,4-c]pyrazin-3-ol (C15H13N5O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 279.30 g/mol, it falls into the medium-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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