1-Bromo-4-(but-1-en-2-yl)benzene CAS 42427-51-0
| CAS No. | 42427-51-0 |
| Molecular Formula | C10H11Br |
| Molecular Weight | 211.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 211.10 g/mol gives 1-Bromo-4-(but-1-en-2-yl)benzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-Bromo-4-(but-1-en-2-yl)benzene (CAS 42427-51-0), molecular formula C10H11Br and molecular weight 211.10 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-Bromo-4-(but-1-en-2-yl)benzene (C10H11Br) is characterized by bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C10H11Br |
| Molecular Weight | 211.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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.) | 1969 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 1-Bromo-3-(1-methylcyclopropyl)benzene (CAS 1211592-89-0)
- 1-Bromo-2-(1-methylcyclopropyl)benzene (CAS 1211594-34-1)
- (3-Bromo-2-methylprop-1-en-1-yl)benzene (CAS 1282061-69-1)
- 1-Bromo-4-cyclopropyl-2-methylbenzene (CAS 1353854-72-4)
- 1-Bromo-2-cyclobutylbenzene (CAS 1353854-80-4)
- 4-Bromo-1-(3-butenyl)benzene (CAS 15451-32-8)
- 1-Bromo-3-(but-3-en-1-yl)benzene (CAS 161173-98-4)
- 1-Bromo-3-cyclobutylbenzene (CAS 17789-13-8)
Recommended Standards
- 1-Bromo-4-(2-methoxyethoxy)butane (CAS 59551-76-7)
- 1-Bromo-4-cyclobutylbenzene (CAS 39868-71-8)
- 1-Bromo-4-(1-methylcyclopropyl)benzene (CAS 40780-08-3)
- 1-Bromo-6-methyl-2,3-dihydro-1H-indene (CAS 863291-32-1)
- 2-(4-Aminophenyl)-6-cyclopropylpyrimidin-4(3h)-one (CAS 1284492-92-7)
- (2E)-1-(1-Hydroxynaphthalen-2-yl)-3-[3-methoxy-4-(pyrrolidin-1-yl)phenyl]prop-2-en-1-one 1353224-57-3 (CAS 1353224-57-3)
- 3-(2-Chloroimidazo[2,1-b][1,3]thiazol-6-yl)-propanoic acid hydrochloride (CAS 1332531-49-3)
- Creosote from beechwood tar (CAS 8021-39-4)
- 2,7-diazatricyclo[6.4.0.0^{2,6}]dodeca-1(8),6,9,11-tetraene-11-carboxylic acid hydrochloride (CAS 1461713-50-7)
- Methyl 4'-amino-3'-fluoro[1,1'-biphenyl]-3-carboxylate (CAS 889946-51-4)
- Ethyl 2-(3-(4-fluorophenyl)propanoyl)benzoate (CAS 898768-00-8)
- N′-(2,3-Dichlorophenyl)-N,N-dimethylurea (CAS 10290-37-6)
- 1-[1-(2-Methoxy-acetyl)-pyrrolidin-3-yl]-1H-pyrazole-4-carboxylic acid (CAS 1316225-01-0)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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