1-Bromo-3-(bromomethyl)-4-methoxy-2-methylbenzene CAS 144241-88-3
| CAS No. | 144241-88-3 |
| Molecular Formula | C9H10Br2O |
| Molecular Weight | 293.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-Bromo-3-(bromomethyl)-4-methoxy-2-methylbenzene (CAS 144241-88-3), molecular formula C9H10Br2O and molecular weight 293.98 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-Bromo-3-(bromomethyl)-4-methoxy-2-methylbenzene (C9H10Br2O) 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 the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H10Br2O |
| Molecular Weight | 293.98 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1998 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 1-Bromo-4-((2-bromoethoxy)methyl)benzene (CAS 103061-55-8)
- 1-Bromo-3-(3-bromopropoxy)benzene (CAS 156450-01-0)
- 2-Bromo-1-(bromomethyl)-5-methoxy-3-methylbenzene (CAS 164513-49-9)
- 1-Bromo-2-(3-bromopropoxy)benzene (CAS 37136-84-8)
- 1-Bromo-4-(2-bromo-1-methoxyethyl)benzene (CAS 628732-89-8)
- 1-Bromo-4-(3-bromopropoxy)benzene (CAS 7497-87-2)
- 2-Bromo-4-(2-bromoethyl)-1-methoxybenzene (CAS 860584-79-8)
- 5-Bromo-2-methoxy-3-methylbenzyl bromide (CAS 954124-94-8)
Recommended Standards
- 1,3-Dibromo-5-ethoxy-2-methylbenzene (CAS 1373120-97-8)
- 1,4-Dibromo-2-isopropoxybenzene (CAS 1369842-73-8)
- 1,3-Dibromo-5-propoxybenzene (CAS 1579943-29-5)
- 1,3-Dibromo-2-ethoxy-5-methylbenzene (CAS 1266253-70-6)
- 4-(4-Difluoromethoxy-phenyl)-butan-2-one (CAS 733044-93-4)
- 2-Iodo-4-(pentafluoro-l6-sulfanyl)aniline (CAS 1365988-20-0)
- 1-(isothiocyanatomethyl)naphthalene 1-Naphthalenemethyl isothiocyanate 17112-82-2 (CAS 17112-82-2)
- Methyl 2-(4-bromophenyl)-2-((tert-butoxycarbonyl)amino)acetate (CAS 709665-73-6)
- Tert-butyl 2-oxa-7-azaspiro[4.4]Nonane-7-carboxylate (CAS 1824270-71-4)
- 7-Bromo-4-methylchroman-4-ol (CAS 2643353-57-3)
- (2-Fluoro-5-(prop-1-yn-1-yl)phenyl)boronic acid (CAS 1309568-14-6)
- N-(1-((Tetrahydro-2H-pyran-4-yl)methyl)-1H-pyrazol-4-yl)but-2-enamide (CAS 1706508-34-0)
- 4-Bromo-2-(thiophen-2-yl)pyridine (CAS 1086381-45-4)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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