2-Bromo-7-(tert-butyl)-9,9-dimethyl-9H-fluorene CAS 1154752-78-9

Description

The occurrence of 2-Bromo-7-(tert-butyl)-9,9-dimethyl-9H-fluorene is closely related to bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Bromo-7-(tert-butyl)-9,9-dimethyl-9H-fluorene (CAS 1154752-78-9), molecular formula C19H21Br and molecular weight 329.27 g/mol, is a CATO reference standard with documented purity and traceability.

2-Bromo-7-(tert-butyl)-9,9-dimethyl-9H-fluorene (C19H21Br) contains bromine substitution, a polycyclic aromatic system. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 2-Bromo-7-(tert-butyl)-9,9-dimethyl-9H-fluorene 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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