3,4-Dibromo-1-trityl-1H-pyrrole-2,5-dione CAS 160989-35-5

Description

The occurrence of 3,4-Dibromo-1-trityl-1H-pyrrole-2,5-dione is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3,4-Dibromo-1-trityl-1H-pyrrole-2,5-dione (CAS 160989-35-5), molecular formula C23H15Br2NO2 and molecular weight 497.18 g/mol, is a CATO reference standard with documented purity and traceability.

3,4-Dibromo-1-trityl-1H-pyrrole-2,5-dione (C23H15Br2NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

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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