1-(4-Bromophenyl)-4-chloro-1-butanone CAS 4559-96-0
| CAS No. | 4559-96-0 |
| Molecular Formula | C10H10BrClO |
| Molecular Weight | 261.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 261.54 g/mol gives 1-(4-Bromophenyl)-4-chloro-1-butanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-(4-Bromophenyl)-4-chloro-1-butanone (CAS 4559-96-0) is a high-purity analytical reference standard with the molecular formula C10H10BrClO and a molecular weight of 261.54 g/mol.
Owing to a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system, 1-(4-Bromophenyl)-4-chloro-1-butanone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 261.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C10H10BrClO |
| Molecular Weight | 261.54 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, DMSO |
| 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.) | 1958 |
| Halogen Content | Cl/Br-containing |
Related Bromophenyl Standards
- 2-(4-Bromophenyl)-2-methylpropanoyl chloride (CAS 1040860-77-2)
- 1-(3-Bromophenyl)-4-chlorobutan-1-one (CAS 494863-34-2)
- 4-(2-Bromophenyl)butanoyl chloride (CAS 92013-30-4)
- (Z)-2-(2-(4-BRomophenyl)hydrazono)-2-chloroacetaldehyde (CAS 1207062-35-8)
- 1-(3-bromophenyl)-3,5-dimethyl-pyrazole (CAS 294877-29-5)
- 1-[(4-Bromophenyl)sulfanyl]-2-methylpropan-2-ol (CAS 1005206-34-7)
- 2-((2-Bromophenyl)thio)-n'-hydroxyacetimidamide (CAS 1097168-16-5)
- 3-((3-BROMOPHENYL)THIO)PROPANOIC ACID (CAS 13735-09-6)
Recommended Standards
- 2-(2-Bromoallyl)-4-chloro-1-methoxybenzene (CAS 951895-05-9)
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- 3-(2-Bromo-5-chlorobenzyl)oxetane (CAS 1823924-50-0)
- (E)-N-(2,5-Dihydroxystyryl)formamide (CAS 100827-28-9)
- 5-Phenyl-4-(piperidin-1-yl)-5H-indeno[1,2-d]pyrimidine (CAS 28858-10-8)
- 1-Bromoimidazo[1,5-a]pyridine-3-carboxylic acid (CAS 1784021-95-9)
- 5,6-dimethyl-1-(oxiran-2-ylmethyl)-1H-1,3-benzodiazole (CAS 1016706-85-6)
- 2-Amino-3,4,5-trifluorobenzoic acid (CAS 531529-72-3)
- 1-(2,6-Dichloro-4-(trifluoromethyl)phenyl)-5-(3,4-dichlorophenyl)-4-(methylsulfonyl)-1H-pyrazole (CAS 400088-06-4)
- N-(2-Methylphenyl)-2-[2-(trifluoromethyl)-1H-1,3-benzodiazol-1-yl]acetamide (CAS 478030-72-7)
- 3-(2-Chloro-5-nitrophenyl)-1,3-oxazolidin-2-one (CAS 1354949-41-9)
- (2R,3S)-3-(tert-butoxycarbonyl)-2-(3,3,3-trifluoropropyl)hex-5-enoic acid (CAS 1581735-07-0)
- Acetyl Tetrapeptide-5 (CAS 820959-17-9)
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