4-Bromo-1-chloro-2-(cyclopentyloxy)benzene CAS 1280786-86-8

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Bromo-1-chloro-2-(cyclopentyloxy)benzene.

4-Bromo-1-chloro-2-(cyclopentyloxy)benzene (CAS 1280786-86-8) is a high-purity analytical reference standard with the molecular formula C11H12BrClO and a molecular weight of 275.57 g/mol.

Structurally, 4-Bromo-1-chloro-2-(cyclopentyloxy)benzene (C11H12BrClO) contains a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 275.57 g/mol, it falls into the medium-molecular-weight range. 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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