1,3-Dimethyl-4,6-dihydroimidazo[4,5-c]pyrazole-5(1H)-thione CAS 251989-15-8

Description

The occurrence of 1,3-Dimethyl-4,6-dihydroimidazo[4,5-c]pyrazole-5(1H)-thione is closely related to a nitrile group, sulfur-containing functionality, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1,3-Dimethyl-4,6-dihydroimidazo[4,5-c]pyrazole-5(1H)-thione (CAS 251989-15-8), molecular formula C6H8N4S and molecular weight 168.22 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 1,3-Dimethyl-4,6-dihydroimidazo[4,5-c]pyrazole-5(1H)-thione (C6H8N4S) is characterized by a nitrile group, sulfur-containing functionality, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

As a certified reference material (CRM), 1,3-Dimethyl-4,6-dihydroimidazo[4,5-c]pyrazole-5(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.

Physical & Chemical Properties

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