4,5-Dichloro-2-(methylsulfonyl)pyrimidine CAS 1803805-58-4

Description

As a certified reference material (CRM), 4,5-Dichloro-2-(methylsulfonyl)pyrimidine 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.

4,5-Dichloro-2-(methylsulfonyl)pyrimidine (CAS 1803805-58-4), molecular formula C5H4Cl2N2O2S and molecular weight 227.07 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C5H4Cl2N2O2S, 4,5-Dichloro-2-(methylsulfonyl)pyrimidine contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 227.07 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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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