7-Chloro-1-ethyl-3-(methylamino)-2,3-dihydroquinazoline-4(1H)-thione CAS 90070-32-9

Description

As a certified reference material (CRM), 7-Chloro-1-ethyl-3-(methylamino)-2,3-dihydroquinazoline-4(1H)-thione 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.

7-Chloro-1-ethyl-3-(methylamino)-2,3-dihydroquinazoline-4(1H)-thione (CAS 90070-32-9), molecular formula C11H14ClN3S and molecular weight 255.77 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 7-Chloro-1-ethyl-3-(methylamino)-2,3-dihydroquinazoline-4(1H)-thione (C11H14ClN3S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 255.77 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

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