1-Methyl-7-nitro-5-phenyl-[1,2,4]triazolo[4,3-a]quinazoline CAS 57370-25-9

Description

Compared with other compounds in its class, the molecular weight of 305.29 g/mol gives 1-Methyl-7-nitro-5-phenyl-[1,2,4]triazolo[4,3-a]quinazoline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-Methyl-7-nitro-5-phenyl-[1,2,4]triazolo[4,3-a]quinazoline (CAS 57370-25-9), molecular formula C16H11N5O2 and molecular weight 305.29 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1-Methyl-7-nitro-5-phenyl-[1,2,4]triazolo[4,3-a]quinazoline (C16H11N5O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 305.29 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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