1-Bromo-4-ethoxy-2-methoxybenzene CAS 1353776-78-9
| CAS No. | 1353776-78-9 |
| Molecular Formula | C9H11BrO2 |
| Molecular Weight | 231.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 1-Bromo-4-ethoxy-2-methoxybenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 231.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1-Bromo-4-ethoxy-2-methoxybenzene (CAS 1353776-78-9), molecular formula C9H11BrO2 and molecular weight 231.09 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C9H11BrO2 |
| Molecular Weight | 231.09 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
Related Bromo Standards
- (R)-2-Bromo-1-(3-methoxyphenyl)ethan-1-ol (CAS 100306-27-2)
- 1-(4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)acetone (CAS 1004017-87-1)
- 5-Bromo-N-(2-methoxyethyl)pyridin-2-amine (CAS 1005010-02-5)
- 3-Bromo-2-isopropoxyphenol (CAS 1026796-53-1)
- 3-bromo-5-(propan-2-yloxy)phenol (CAS 1026796-73-5)
- 3-[(5-Bromo-2-pyridinyl)amino]-1-propanol (CAS 1036563-47-9)
- (5-Bromo-4-(dimethylamino)pyridin-2-yl)methanol (CAS 103971-45-5)
- 4-Bromo-1-(4-tetrahydropyranyl)pyrazole (CAS 1040377-02-3)
Recommended Standards
- 2-(5-Bromo-2-hydroxymethylphenyl)ethanol (CAS 1353101-75-3)
- 4-Bromo-1-(oxan-4-yl)-1H-imidazole (CAS 1353853-99-2)
- 1-Bromo-2,5-dimethoxy-3-methylbenzene (CAS 13523-12-1)
- 2-(((2-Bromopyridin-4-yl)methyl)amino)ethanol (CAS 1353962-12-5)
- Boc-Leu-chloromethylketone (CAS 102123-85-3)
- 2-(1H-Benzo[d][1,2,3]triazol-1-yl)quinoline (CAS 106653-30-9)
- 1-ethyl-2-mercapto-1H-benzimidazole-5-sulfonamide (CAS 795291-33-7)
- 5-Nitro-2-(pyrrolidin-1-yl)benzaldehyde (CAS 30742-59-7)
- 1,9-Decadiyne (CAS 1720-38-3)
- n-Cyclopentyl-4,5,6,7-tetrahydrobenzofuran-4-amine (CAS 1042574-25-3)
- Methyl 4-(2,3-difluorophenyl)benzoate (CAS 1248542-13-3)
- 2-(4-Butylphenyl)-7-chloro-8-methylquinoline-4-carbonyl chloride (CAS 1160256-30-3)
- (3R,4R)-3-tert-Butoxycarbonylamino-4-hydroxy-pyrrolidine-1-carboxylic acid benzyl ester (CAS 1203566-76-0)
- Insulin Degludec Impurity 19 (CAS CATO-C4X-215719)
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