2-Bromonaphthalene-1,4,5,8-tetracarboxylic 1,8:4,5-Dianhydride CAS 846-20-8

Description

The occurrence of 2-Bromonaphthalene-1,4,5,8-tetracarboxylic 1,8:4,5-Dianhydride is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Bromonaphthalene-1,4,5,8-tetracarboxylic 1,8:4,5-Dianhydride (CAS 846-20-8), molecular formula C14H3BrO6 and molecular weight 347.07 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2-Bromonaphthalene-1,4,5,8-tetracarboxylic 1,8:4,5-Dianhydride (C14H3BrO6) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 347.07 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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