2,4-Diphenyl-5,6,7,8-tetrahydroquinazoline CAS 20954-93-2

Description

The occurrence of 2,4-Diphenyl-5,6,7,8-tetrahydroquinazoline is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2,4-Diphenyl-5,6,7,8-tetrahydroquinazoline (CAS 20954-93-2), molecular formula C20H18N2 and molecular weight 286.37 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2,4-Diphenyl-5,6,7,8-tetrahydroquinazoline (C20H18N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 286.37 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.

As a certified reference material (CRM), 2,4-Diphenyl-5,6,7,8-tetrahydroquinazoline meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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