4-(3,4-Difluorophenyl)-1-butene CAS 951892-54-9
| CAS No. | 951892-54-9 |
| Molecular Formula | C10H10F2 |
| Molecular Weight | 168.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(3,4-Difluorophenyl)-1-butene (CAS 951892-54-9), molecular formula C10H10F2 and molecular weight 168.18 g/mol, is a CATO reference standard with documented purity and traceability.
4-(3,4-Difluorophenyl)-1-butene (C10H10F2) contains fluorine 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H10F2 |
| Molecular Weight | 168.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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-containing |
Related Difluorophenyl Standards
- 4-(2,6-Difluorophenyl)-1-butene (CAS 951892-39-0)
- 951893-52-0 3-(2,4-Difluorophenyl)-2-methyl-1-propene MFCD09801258 (CAS 951893-52-0)
- 2-[(3,5-Difluorophenyl)amino]acetonitrile (CAS 1021238-97-0)
- 3-(2,5-Difluorophenyl)prop-2-yn-1-ol (CAS 109034-27-7)
- (E)-3-(2,3-difluorophenyl)acrylaldehyde (CAS 1254840-98-6)
- (E)-3-(3,4-Difluorophenyl)acrylaldehyde (CAS 1334528-90-3)
- 3-(2,3-Difluorophenyl)prop-2-yn-1-ol (CAS 1339451-29-4)
- (E)-3-(2,6-Difluorophenyl)acrylaldehyde (CAS 1431732-14-7)
Recommended Standards
- 4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine (CAS 24521-76-4)
- 3-Amino-thiazolo[3,2-b][1,2,4]triazin-7-one (CAS 876717-68-9)
- 5-(1,2-Oxazol-3-yl)-1,3,4-thiadiazol-2-amine (CAS 70057-77-1)
- 2-Hydroxy-6-mercaptopurine (CAS 2002-59-7)
- 3H-Perfluoro(but-2-en-2-yl) acetate (CAS 368-51-4)
- 3-chloro-1-(4-phenylpiperazin-1-yl)propan-1-one (CAS 2392-47-4)
- 6-Chloro-1-phenyl-1h,4h,5h-pyrazolo[3,4-d]pyrimidine (CAS 130024-05-4)
- N-Methyltryptamine-d3 (CAS 1794756-39-0)
- 3-Chloro-6-cyclopropoxypyridazine (CAS 1209459-55-1)
- (S)-3-(difluoromethyl)-2-(pyrrolidin-2-yl)benzonitrile (CAS 1446982-17-7)
- Methyl 4-hydroxy-2-(trifluoromethyl)benzoate (CAS 790695-49-7)
- 3-(2-Chloroethyl)-3,4-dihydroquinazolin-4-one (CAS 2940-68-3)
- 1-(bromomethoxy)propane (CAS 59375-50-7)
- Cyclolinopeptide B (CAS 193139-41-2)
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