4-Chloro-7-mesityl-2,5,6-trimethyl-7H-pyrrolo[2,3-d]pyrimidine CAS 157286-73-2

Description

The occurrence of 4-Chloro-7-mesityl-2,5,6-trimethyl-7H-pyrrolo[2,3-d]pyrimidine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Chloro-7-mesityl-2,5,6-trimethyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 157286-73-2), molecular formula C18H20ClN3 and molecular weight 313.82 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 4-Chloro-7-mesityl-2,5,6-trimethyl-7H-pyrrolo[2,3-d]pyrimidine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 313.82 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 4-Chloro-7-mesityl-2,5,6-trimethyl-7H-pyrrolo[2,3-d]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.

Physical & Chemical Properties

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