2-(3-Bromobut-3-en-1-yl)-1,4-difluorobenzene CAS 951892-31-2
| CAS No. | 951892-31-2 |
| Molecular Formula | C10H9BrF2 |
| Molecular Weight | 247.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(3-Bromobut-3-en-1-yl)-1,4-difluorobenzene is closely related to fluorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(3-Bromobut-3-en-1-yl)-1,4-difluorobenzene (CAS 951892-31-2), molecular formula C10H9BrF2 and molecular weight 247.08 g/mol, is a CATO reference standard with documented purity and traceability.
2-(3-Bromobut-3-en-1-yl)-1,4-difluorobenzene (C10H9BrF2) contains fluorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C10H9BrF2 |
| Molecular Weight | 247.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Br-containing |
Related Bromobut Standards
- 1-(3-Bromobut-3-en-1-yl)-3,5-difluorobenzene (CAS 951892-78-7)
- 5-(3-Bromobut-3-en-1-yl)-2-chloropyridine (CAS 951886-60-5)
- 1-(3-Bromobut-3-en-1-yl)-2-chlorobenzene (CAS 731772-02-4)
- 1-(3-Bromobut-3-en-1-yl)-4-chlorobenzene (CAS 731772-11-5)
- 3-(3-Bromobut-3-en-1-yl)chlorobenzene (CAS 731772-07-9)
- 1-(4-bromobut-1-en-1-yl)-3-methoxybenzene (CAS 1226484-23-6)
- 1-(3-Bromobut-3-en-1-yl)-2-methoxybenzene (CAS 731773-15-2)
- 1-(3-Bromobut-3-en-1-yl)-4-methoxybenzene (CAS 731773-20-9)
Recommended Standards
- 2-(2-Iodophenyl)ethanamine (CAS 66384-49-4)
- 2-(3-Iodophenyl)ethanamine (CAS 93985-45-6)
- 1-Bromo-4-(2,2-difluoro-1-methylcyclopropyl)benzene (CAS 2138083-44-8)
- 2-(4-Iodophenyl)ethan-1-amine (CAS 73918-57-7)
- 7-Chloro-4-hydroxyquinolin-2(1H)-one (CAS 1677-35-6)
- Dimethyl 5-(m-tolyl)-1H,3H-pyrrolo[1,2-c]thiazole-6,7-dicarboxylate 2,2-dioxide (CAS 339113-58-5)
- 5-Bromo-2-isopropylthiazole (CAS 1086382-46-8)
- 7-Aminomethyl-7-deazaguanosine (CAS 66048-70-2)
- 5-Bromo-N-cyclopropylthiophene-2-carboxamide (CAS 495382-05-3)
- 4-Cyclopropoxy-3,5-dimethoxypyridine (CAS 1243481-40-4)
- Ethyl (R)-2-(difluoromethylene)-5-oxotetrahydro-1H-pyrrolizine-7a(5H)-carboxylate (CAS 2852766-76-6)
- 2-(3,5-Dimethoxyphenyl)-2-oxoacetaldehyde hydrate (CAS 93506-72-0)
- 4-[[(5-Chloro-2-thienyl)sulfonyl]amino]benzoic acid (CAS 329906-72-1)
- Eledoisin Related Peptide (CAS 2990-43-4)
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