7-(Difluoromethyl)-5-phenylpyrazolo[1,5-a]pyrimidine-3-carbonyl chloride CAS 861412-81-9

Description

7-(Difluoromethyl)-5-phenylpyrazolo[1,5-a]pyrimidine-3-carbonyl chloride (C14H8ClF2N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/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).

7-(Difluoromethyl)-5-phenylpyrazolo[1,5-a]pyrimidine-3-carbonyl chloride (CAS 861412-81-9), molecular formula C14H8ClF2N3O and molecular weight 307.68 g/mol, is a CATO reference standard with documented purity and traceability.

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.

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.

Physical & Chemical Properties

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