2-Bromo-1-ethyl-3-methylbenzene CAS 65232-55-5
| CAS No. | 65232-55-5 |
| Molecular Formula | C9H11Br |
| Molecular Weight | 199.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Bromo-1-ethyl-3-methylbenzene is closely related to bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Bromo-1-ethyl-3-methylbenzene (CAS 65232-55-5), molecular formula C9H11Br and molecular weight 199.09 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H11Br, 2-Bromo-1-ethyl-3-methylbenzene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 199.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
CATO manufactures 2-Bromo-1-ethyl-3-methylbenzene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H11Br |
| Molecular Weight | 199.09 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| 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.) | 1975 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-Bromo-2-ethyl-1-methylbenzene (CAS 1161497-35-3)
- (R)-(1-Bromo-2-propyl)benzene (CAS 116724-02-8)
- 3-Bromo-5-ethyltoluene (CAS 1208075-19-7)
- 1-Bromo-3-ethyl-2-methylbenzene (CAS 1369886-45-2)
- (S)-(1-Bromo-2-propyl)benzene (CAS 147514-19-0)
- 2-Bromo-4-ethyl-1-methylbenzene (CAS 17070-97-2)
- 1-Bromo-2-propylbenzene (CAS 19614-14-3)
- 1-Bromo-1-phenylpropane, 97% (CAS 2114-36-5)
Recommended Standards
- 2,6-Dimethylbenzyl Bromide (CAS 83902-02-7)
- 1-(Bromomethyl)-3,5-dimethylbenzene (CAS 27129-86-8)
- 2,4-Dimethylbenzyl Bromide (CAS 78831-87-5)
- 5-Bromo-1,2,3-trimethylbenzene (CAS 32591-43-8)
- 3-(5-Amino-2-(1-hydroxyethyl)-1H-benzo[d]imidazol-1-yl)propan-1-ol (CAS 919007-88-8)
- (S)-3-(Cyclohexylmethyl)-4-methoxy-4-oxobutanoic acid (CAS 220497-69-8)
- N-(2-(3,5-Dimethylphenoxy)ethyl)-2,4-difluorobenzamide (CAS 1105229-34-2)
- 1-(3-Chlorophenyl)-5-(furan-2-yl)-1h-pyrazole-3-carboxylic acid (CAS 957013-17-1)
- 2,4,5-Trichlorophenyl-4'-nitrophenyl ether (CAS 22532-68-9)
- 2-Benzyl-5-(methylamino)-1,2,4-thiadiazol-3(2H)-one (CAS 1365942-47-7)
- 2-Cyano-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl acetate (CAS 1292317-52-2)
- 2-Amino-6-bromo-3-methyl-4H-chromen-4-one (CAS 1936239-35-8)
- 5-Hydroxy-2,3-dihydrobenzofuran-6-carboxaldehyde (CAS 99385-88-3)
- Acetyl Tetrapeptide-11 (CAS 928006-88-6)
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