1-(3-Bromobut-3-en-1-yl)-3,5-difluorobenzene CAS 951892-78-7
| CAS No. | 951892-78-7 |
| Molecular Formula | C10H9BrF2 |
| Molecular Weight | 247.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H9BrF2, 1-(3-Bromobut-3-en-1-yl)-3,5-difluorobenzene contains fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 247.08 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.
1-(3-Bromobut-3-en-1-yl)-3,5-difluorobenzene (CAS 951892-78-7), molecular formula C10H9BrF2 and molecular weight 247.08 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 1-(3-Bromobut-3-en-1-yl)-3,5-difluorobenzene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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
- 2-(3-Bromobut-3-en-1-yl)-1,4-difluorobenzene (CAS 951892-31-2)
- 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
- (S)-1-(4-iodophenyl)ethan-1-amine (CAS 56639-48-6)
- 1-(3-Iodophenyl)-N-methylmethanamine (CAS 90389-93-8)
- (4-Iodobenzyl)methylamine (CAS 887139-07-3)
- 1-(4-Iodophenyl)ethanamine (CAS 90086-41-2)
- 4-(3-(2-Aminoethyl)-1H-indol-1-yl)phenol (CAS 904085-95-6)
- 8-Boc-2,4,8-triazaspiro[4.5]decane-1,3-dione (CAS 183673-70-3)
- N-(5-Chloro-4-methylbenzo[d]thiazol-2-yl)-2-(2,5-dioxopyrrolidin-1-yl)acetamide (CAS 897759-64-7)
- Ethenesulfonamide (CAS 2386-58-5)
- Terbinafine Impurity 30 (CAS 134865-58-0)
- Methyl N-(2-(3-amino-2-oxopyridin-1(2H)-yl)ethyl)-N-methylglycinate (CAS 2171110-47-5)
- Butylphthalide Impurity 48 (CAS 952413-01-3)
- (4-(1,3-Dioxolan-2-yl)phenyl)(2-methoxyphenyl)methanone (CAS 898759-86-9)
- (4-Isopropyl-benzyl)-(tetrahydro-furan-2-yl-methyl)-amine (CAS 436096-82-1)
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
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