1,1'',3,3''-Tetramethyl-1H,1'H,1''H-4,3':5',4''-terpyrazole CAS 1159937-01-5

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,1'',3,3''-Tetramethyl-1H,1'H,1''H-4,3':5',4''-terpyrazole.

1,1'',3,3''-Tetramethyl-1H,1'H,1''H-4,3':5',4''-terpyrazole (CAS 1159937-01-5), molecular formula C13H16N6 and molecular weight 256.31 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1,1'',3,3''-Tetramethyl-1H,1'H,1''H-4,3':5',4''-terpyrazole (C13H16N6) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 256.31 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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