1,2-Dibromoethylene (cis- and trans- mixture) CAS 540-49-8

Purity >95%In StockPharmaceutical Standards
CAS No.540-49-8
Molecular FormulaC2H2Br2
Molecular Weight185.85 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,2-Dibromoethylene (cis- and trans- mixture) CAS 540-49-8 chemical structure

Description

CATO supplies 1,2-Dibromoethylene (cis- and trans- mixture) (CAS 540-49-8), a certified reference material (molecular formula C2H2Br2, MW 185.85 g/mol) for analytical method development and quality control.

1,2-Dibromoethylene (cis- and trans- mixture) (C2H2Br2) contains bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC2H2Br2
Molecular Weight185.85 g/mol
Purity>95%
StorageStore at 2-8°C, 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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