4-(2-Bromoethoxy)-2-methyl-1-(propan-2-yl)benzene CAS 731802-21-4
| CAS No. | 731802-21-4 |
| Molecular Formula | C12H17BrO |
| Molecular Weight | 257.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2-Bromoethoxy)-2-methyl-1-(propan-2-yl)benzene (CAS 731802-21-4), molecular formula C12H17BrO and molecular weight 257.17 g/mol, is a CATO reference standard with documented purity and traceability.
4-(2-Bromoethoxy)-2-methyl-1-(propan-2-yl)benzene (C12H17BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C12H17BrO |
| Molecular Weight | 257.17 g/mol |
| 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 Bromoethoxy Standards
- 1-(2-Bromoethoxy)-3-tert-butylbenzene (CAS 1099115-94-2)
- 1-(2-Bromoethoxy)-4-(tert-butyl)benzene (CAS 5952-59-0)
- 4-(2-Bromoethoxy)tetrahydro-2H-thiopyran 1,1-dioxide (CAS 2138424-47-0)
- 2-[2-[2-(2-Bromoethoxy)ethoxy]ethoxy]ethanol (CAS 85141-94-2)
- 3-(2-bromoethoxy)-1,1,1,2,2-pentafluoropropane (CAS 1565435-09-7)
- N-(2-(2-bromoethoxy)phenyl)acetamide (CAS 119416-25-0)
- N-(3-(2-bromoethoxy)phenyl)acetamide (CAS 741199-06-4)
- N-[4-(2-bromoethoxy)phenyl]acetamide (CAS 57011-90-2)
Recommended Standards
- 3-Hydroxy-8-(trifluoromethyl)quinoline-4-carboxylic acid (CAS 924633-55-6)
- 4-Bromo-2,6-bis(propan-2-yl)phenol (CAS 2432-03-3)
- 3-[4-(trifluoromethyl)phenyl]-1,2-oxazole-5-carboxylic acid (CAS 901926-70-3)
- 4-Bromo-2-methyl-1-(pentyloxy)benzene (CAS 854260-62-1)
- 2-Chloro-N-(4-isopropoxyphenyl)acetamide (CAS 100129-54-2)
- 3-(Fluoromethyl)-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazole-5-carboxylic acid (CAS 1263206-37-6)
- 5-Formyl-2-hydroxybenzenesulfonic acid (CAS 29848-93-9)
- tert-Butyl 4-(((trifluoromethyl)sulfonyl)oxy)piperidine-1-carboxylate (CAS 1138820-45-7)
- (R)-Ethyl 4-(4-bromophenyl)-3-((tert-butoxycarbonyl)amino)butanoate (CAS 1257446-29-9)
- (S)-2'-(Diphenylphosphinyl)-[1,1'-binaphthalen]-2-ol (CAS 137769-33-6)
- 3-(2,4-Difluorophenoxy)propane-1-sulfonyl chloride (CAS 1340339-43-6)
- cis-4-Amino-1-(trifluoromethyl)cyclohexanol (CAS 1408076-30-1)
- Dimethyl 4-acetamido-6-chloroisophthalate (CAS 335293-22-6)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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