1591AF 2-Chloro-1,4-dibromo-1,1-difluorobutane 883499-16-9 C4H5Br2ClF2 CAS 883499-16-9
| CAS No. | 883499-16-9 |
| Molecular Formula | C4H5Br2ClF2 |
| Molecular Weight | 286.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1591AF 2-Chloro-1,4-dibromo-1,1-difluorobutane 883499-16-9 C4H5Br2ClF2 (CAS 883499-16-9) is a high-purity analytical reference standard with the molecular formula C4H5Br2ClF2 and a molecular weight of 286.34 g/mol.
1591AF 2-Chloro-1,4-dibromo-1,1-difluorobutane 883499-16-9 C4H5Br2ClF2 (C4H5Br2ClF2) contains fluorine/chlorine/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.
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 Formula | C4H5Br2ClF2 |
| Molecular Weight | 286.34 g/mol |
| Purity | 97%+ |
| 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) | 0.0 |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl/Br-containing |
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