(Z)-1,4-dibromobut-2-ene CAS 18866-73-4

Purity >95%In StockPharmaceutical Standards
CAS No.18866-73-4
Molecular FormulaC4H6Br2
Molecular Weight213.90 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(Z)-1,4-dibromobut-2-ene CAS 18866-73-4 chemical structure

Description

Structurally, (Z)-1,4-dibromobut-2-ene (C4H6Br2) contains bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 213.90 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.

(Z)-1,4-dibromobut-2-ene (CAS 18866-73-4) is a high-purity analytical reference standard with the molecular formula C4H6Br2 and a molecular weight of 213.90 g/mol.

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

Molecular FormulaC4H6Br2
Molecular Weight213.90 g/mol
Purity>95%
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1962
Halogen ContentBr-containing

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