4-Chloro-5,7-diphenyl-7H-pyrrolo[2,3-d]pyrimidine CAS 287177-10-0

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

4-Chloro-5,7-diphenyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 287177-10-0), molecular formula C18H12ClN3 and molecular weight 305.76 g/mol, is a CATO reference standard with documented purity and traceability.

4-Chloro-5,7-diphenyl-7H-pyrrolo[2,3-d]pyrimidine (C18H12ClN3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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