3'-Bromo-10,10-dimethyl-Spiro[anthracene-9(10H),9'-[ 9H]fluorene] CAS 2170533-42-1

Description

Compared with other compounds in its class, the molecular weight of 437.37 g/mol gives 3'-Bromo-10,10-dimethyl-Spiro[anthracene-9(10H),9'-[ 9H]fluorene] distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3'-Bromo-10,10-dimethyl-Spiro[anthracene-9(10H),9'-[ 9H]fluorene] (CAS 2170533-42-1), molecular formula C28H21Br and molecular weight 437.37 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to bromine substitution, a polycyclic aromatic system, 3'-Bromo-10,10-dimethyl-Spiro[anthracene-9(10H),9'-[ 9H]fluorene] is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 437.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

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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