2-Bromo-1-(2-bromo-4,5-dimethoxyphenyl)ethanone CAS 321681-28-1
| CAS No. | 321681-28-1 |
| Molecular Formula | C10H10Br2O3 |
| Molecular Weight | 337.99 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.
2-Bromo-1-(2-bromo-4,5-dimethoxyphenyl)ethanone (CAS 321681-28-1), molecular formula C10H10Br2O3 and molecular weight 337.99 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Bromo-1-(2-bromo-4,5-dimethoxyphenyl)ethanone (C10H10Br2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 337.99 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures 2-Bromo-1-(2-bromo-4,5-dimethoxyphenyl)ethanone 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 | C10H10Br2O3 |
| Molecular Weight | 337.99 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
Related Bromo Standards
- Methyl 5-bromo-4-(bromomethyl)-2-methoxybenzoate (CAS 1075281-18-3)
- 5-Bromo-2-bromomethyl-4-methoxy-benzoic acid methyl ester (CAS 1965310-34-2)
- 2-Bromo-1-(4-bromo-2,5-dimethoxy-phenyl)ethanone (CAS 807631-08-9)
- 3-Bromo-4-(2-bromoethoxy)-5-methoxybenzaldehyde (CAS 219685-47-9)
- 2-Bromo-1-nitro-3,5-bis(trifluoromethyl)benzene (CAS 133307-04-7)
- 2-Bromo-5-nitro-1,3-bis(trifluoromethyl)benzene (CAS 1365643-24-8)
- 1-Bromo-2-nitro-4,5-bis(trifluoromethyl)benzene (CAS 229957-08-8)
- 7-Bromo-2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]oxazole (CAS 2377607-31-1)
Recommended Standards
- 2,3-dibromo-5-ethoxy-4-methoxybenzaldehyde (CAS 834907-53-8)
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- 3,6-Dibromo-9H-fluoren-9-one (CAS 216312-73-1)
- 2,3-Dibromo-3-(4-methoxyphenyl)propanoic acid (CAS 77820-32-7)
- 6-(3,4-Dihydroisoquinolin-2(1H)-yl)hexan-1-ol (CAS 88014-18-0)
- 1-(Difluoromethyl)-1H-pyrazole-5-carboxylic Acid (CAS 925199-97-9)
- 3-Bromo-2-(propan-2-ylsulfanyl)-5-(trifluoromethyl)pyridine (CAS 1881328-03-5)
- Iodine tribromide (CAS 7789-58-4)
- 2-(Bromomethyl)-5-phenylbenzo[d]thiazole (CAS 951122-54-6)
- (4-Oxo-3-{[3-(trifluoromethyl)benzoyloxy]methyl}-3,4-dihydro-2H-1-benzopyran-3-yl)methyl 3-(trifluoromethyl)benzoate (CAS 338755-81-0)
- 5-(aminomethyl)-4H,5H,6H,7H-pyrazolo[1,5-a]pyridine-3-carboxamide dihydrochloride (CAS 1803593-49-8)
- 2-(Benzylthio)-1-(4-fluorophenyl)-5-(p-tolyl)-1H-imidazole (CAS 1207009-05-9)
- (R)-3-(1-amino-2,2,2-trifluoroethyl)-2-methylaniline (CAS 1213192-39-2)
- 103244-41-3 Insulin-like Growth Factor-II fragment 33-40 Ser-Arg-Val-Ser-Arg-Arg-Ser-Arg (CAS 103244-41-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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