(3-Bromobutyl)benzene CAS 21953-83-3
| CAS No. | 21953-83-3 |
| Molecular Formula | C10H13Br |
| Molecular Weight | 213.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (3-Bromobutyl)benzene.
(3-Bromobutyl)benzene (CAS 21953-83-3) is a high-purity analytical reference standard with the molecular formula C10H13Br and a molecular weight of 213.11 g/mol.
Based on its molecular formula C10H13Br, (3-Bromobutyl)benzene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 213.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | C10H13Br |
| Molecular Weight | 213.11 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
Related Bromobutyl Standards
- (4-Bromobutyl)benzene (CAS 13633-25-5)
- (2-Bromobutyl)benzene (CAS 81012-82-0)
- 4-(2-Bromobutyl)pyridine (CAS 1342161-11-8)
- (4-Bromobutyl)(isopropyl)sulfane (CAS 1179869-75-0)
- 4-(4-Bromobutyl)-1-methyl-1h-pyrazole (CAS 1343174-56-0)
- 2-(4-Bromobutyl)-1,3-dioxolane (CAS 87227-41-6)
- 3-(4-Bromobutyl)thiophene (CAS 125878-89-9)
- 2-(4-Bromobutyl)-thiophene (CAS 69340-26-7)
Recommended Standards
- 1-(1-Bromoethyl)-2,4-dimethylbenzene (CAS 20871-92-5)
- (1-Bromo-2-methylpropan-2-yl)benzene (CAS 3756-32-9)
- 1-(1-Bromopropan-2-yl)-2-methylbenzene (CAS 99187-27-6)
- 2-(Perfluoroethyl)pyrimidin-5-amine (CAS 1936554-56-1)
- Ethyl 6-bromo-2-methoxynicotinate (CAS 1804507-80-9)
- tert-Butyl (4-(5-formylthiophen-2-yl)phenyl)carbamate (CAS 886502-44-9)
- 2-Hydroxy-1-(1H-pyrrol-2-yl)propan-1-one (CAS 27472-41-9)
- 9-Bromo-5,5-dimethyl-5H-naphtho[3,2,1-de]anthracene (CAS 1404299-22-4)
- Lapatinib Impurity 37 (CAS 1268997-70-1)
- 4-(4-(4-Chlorophenyl)thiazol-2-yl)-N-phenylbenzamide (CAS 338408-14-3)
- (±)-Cetirizine-d4 (ethoxy-d4) (CAS 1219803-84-5)
- Cadmium arsenide (CAS 12006-15-4)
- [N-Non-Ac]-Thymalfasin (CAS CATO-C4X-189811)
- Palmitoyl Hexapeptide-12 (CAS 171263-26-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com