(E)-1,4-Dibromobut-2-ene CAS 821-06-7

Purity 97%+In StockPharmaceutical Standards
CAS No.821-06-7
Molecular FormulaC4H6Br2
Molecular Weight213.90 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-1,4-Dibromobut-2-ene CAS 821-06-7 chemical structure

Description

The molecular framework of (E)-1,4-Dibromobut-2-ene (C4H6Br2) is characterized by bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

(E)-1,4-Dibromobut-2-ene (CAS 821-06-7) 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.

As a certified reference material (CRM), (E)-1,4-Dibromobut-2-ene 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

Molecular FormulaC4H6Br2
Molecular Weight213.90 g/mol
Purity97%+
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.)1957
Halogen ContentBr-containing

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