3,4-DIbromo-1,1,1,3-tetrafluorobutane CAS 933668-36-1
| CAS No. | 933668-36-1 |
| Molecular Formula | C4H4Br2F4 |
| Molecular Weight | 287.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-DIbromo-1,1,1,3-tetrafluorobutane (CAS 933668-36-1), molecular formula C4H4Br2F4 and molecular weight 287.88 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H4Br2F4, 3,4-DIbromo-1,1,1,3-tetrafluorobutane contains fluorine/bromine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 287.88 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.
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 | C4H4Br2F4 |
| Molecular Weight | 287.88 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/Br-containing |
Related DIbromo Standards
- 4,6-Dibromo-2,3-difluorophenol (CAS 1242336-65-7)
- 2,4-Dibromo-3,5-difluorophenol (CAS 1785533-13-2)
- 3,5-Dibromo-2,4-difluorophenol (CAS 1803816-23-0)
- 2,5-Dibromo-3,6-difluorophenol (CAS 1806326-44-2)
- 1,4-Dibromo-1,1,2,2-tetrafluorobutane (CAS 18599-20-7)
- Methyl 3,5-dibromo-4-oxopentanoate (CAS 140663-07-6)
- Ethyl 2,2-dibromo-3-oxobutanoate (CAS 89415-67-8)
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Recommended Standards
- 4-Bromo-3,6-dichloro-2-fluorobenzoic acid (CAS 1160573-27-2)
- 3,6-Dibromopyrazine-2,5-dicarbonitrile (CAS 1391026-27-9)
- 3-Bromo-2,4-dichloro-6-fluorobenzoic acid (CAS 2586126-17-0)
- 5-Bromo-3-(N,O-dimethylhydroxylaminocarbonyl)phenylboronic acid (CAS 2121514-03-0)
- 1-((2-(Furan-2-yl)-4-methylthiazol-5-yl)methyl)-3-(o-tolyl)urea (CAS 1421528-21-3)
- 2-(1-Ethoxy-4-methylpentyl)furan (CAS 90908-96-6)
- Methyl 2-bromo-5-chlorothiazole-4-carboxylate (CAS 1053655-63-2)
- 4-Bromo-1-methyl-1H-pyrazolo[4,3-c]pyridine (CAS 1289014-53-4)
- 4-Methoxy-2-(trifluoromethoxy)benzoic acid (CAS 886502-37-0)
- (2S,5S)-2,5-Diethylpiperazine (CAS 1240590-22-0)
- (S)-4-Hydroxy-[2.2]paracyclophane (CAS 157018-15-0)
- 3-Fluoro-[1,2,4]triazolo[5,1-c][1,2,4]triazin-4(8H)-one (CAS 1353761-14-4)
- 1,3-17:0 D5DG (CAS 1246523-65-8)
- Peptide Impurity 26 (CAS 1350456-66-4)
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