3-Methyl-5-(methylthio)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one CAS 65023-35-0

Description

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.

3-Methyl-5-(methylthio)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 65023-35-0), molecular formula C6H7N5OS and molecular weight 197.22 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3-Methyl-5-(methylthio)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (C6H7N5OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. 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 197.22 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.

As a certified reference material (CRM), 3-Methyl-5-(methylthio)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one 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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