(E)-1,2,3-Tribromo-But-2-Ene CAS 40049-80-7
| CAS No. | 40049-80-7 |
| Molecular Formula | C4H5Br3 |
| Molecular Weight | 292.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-1,2,3-Tribromo-But-2-Ene (CAS 40049-80-7) is a high-purity analytical reference standard with the molecular formula C4H5Br3 and a molecular weight of 292.79 g/mol.
Based on its molecular formula C4H5Br3, (E)-1,2,3-Tribromo-But-2-Ene contains bromine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 292.79 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Formula | C4H5Br3 |
| Molecular Weight | 292.79 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
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