4-Bromo-1-ethxoy-2-ethylbenzene CAS 749932-54-5
| CAS No. | 749932-54-5 |
| Molecular Formula | C10H13BrO |
| Molecular Weight | 229.11 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 4-Bromo-1-ethxoy-2-ethylbenzene.
4-Bromo-1-ethxoy-2-ethylbenzene (CAS 749932-54-5) is a high-purity analytical reference standard with the molecular formula C10H13BrO and a molecular weight of 229.11 g/mol.
The molecular framework of 4-Bromo-1-ethxoy-2-ethylbenzene (C10H13BrO) is characterized by a hydroxyl group, an ether linkage, 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 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 | C10H13BrO |
| Molecular Weight | 229.11 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, 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.) | 1986 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 2-Bromo-1-methyl-4-propoxybenzene (CAS 1026796-30-4)
- 4-Bromo-3-(tert-butyl)phenol (CAS 10323-39-5)
- 1-bromo-4-(butan-2-yloxy)benzene (CAS 103323-60-0)
- 4-Bromo-3-(tert-butyl)phenol (CAS 103414-68-2)
- 1-Bromo-3-(sec-butoxy)benzene (CAS 1042560-11-1)
- 4-Bromo-2-isopropoxy-1-methylbenzene (CAS 1114808-85-3)
- 1-Bromo-2-methyl-4-propoxybenzene (CAS 1133116-39-8)
- (3-Bromo-2-methoxypropyl)benzene (CAS 115333-02-3)
Recommended Standards
- 4-(4-Bromophenyl)butan-2-ol (CAS 223554-16-3)
- 4-Bromo-1-isopropoxy-2-methylbenzene (CAS 749927-58-0)
- 4-(2-Bromoethyl)-1-methoxy-2-methylbenzene (CAS 69919-95-5)
- 4-Bromo-2,6-diethylphenol (CAS 63770-09-2)
- 2-Bromo-3-chloro-4-(trifluoromethyl)acetophenone (CAS 1807073-09-1)
- 3-(((4-Bromophenyl)thio)methyl)-4-phenyl-1-(p-tolyl)azetidin-2-one (CAS 866049-17-4)
- 4-Phenylbutyryl Chloride (CAS 18496-54-3)
- rac-2-Amino Nicotine (CAS 32726-84-4)
- (S)-2-(Pyrrolidin-2-yl)-3H-imidazo[4,5-c]pyridine (CAS 944030-58-4)
- N-(2-((4-(2-Methoxyphenyl)piperazin-1-yl)sulfonyl)ethyl)-2-phenoxypropanamide (CAS 897611-30-2)
- 4-Bromo-3-(difluoromethyl)-2-hydroxypyridine-5-methanol (CAS 1805348-55-3)
- 7-Bromo-2-(tert-butyl)isoindolin-1-one (CAS 1290140-02-1)
- (Ra,S,S)-Me-SpiroBOX (CAS 1198587-73-3)
- Semaglutide impurity 202 (CAS CATO-C4X-2226202)
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