3-(4-Chlorophenyl)-6-tosylpyrazolo[1,5-a]pyrimidin-7-amine CAS 439109-02-1

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-(4-Chlorophenyl)-6-tosylpyrazolo[1,5-a]pyrimidin-7-amine (CAS 439109-02-1), molecular formula C19H15ClN4O2S and molecular weight 398.87 g/mol, is a CATO reference standard with documented purity and traceability.

3-(4-Chlorophenyl)-6-tosylpyrazolo[1,5-a]pyrimidin-7-amine (C19H15ClN4O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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).

CATO manufactures 3-(4-Chlorophenyl)-6-tosylpyrazolo[1,5-a]pyrimidin-7-amine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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