4-Ethoxyphenyl 2-bromobutanoate CAS 1172946-87-0
| CAS No. | 1172946-87-0 |
| Molecular Formula | C12H15BrO3 |
| Molecular Weight | 287.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Ethoxyphenyl 2-bromobutanoate (C12H15BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
4-Ethoxyphenyl 2-bromobutanoate (CAS 1172946-87-0), molecular formula C12H15BrO3 and molecular weight 287.15 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C12H15BrO3 |
| Molecular Weight | 287.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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.) | 1989 |
| Halogen Content | Br-containing |
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Recommended Standards
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- tert-Butyl (4-amino-2-bromophenyl)carbamate (CAS 1156693-42-3)
- 2-[(3-bromophenyl)methyl]-4-methoxybutanoic acid (CAS 1182757-92-1)
- 1-(4-Methoxyphenyl)-3-{1-[2-(2-methylphenyl)-2-oxoethyl]-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl}urea (CAS 1796913-73-9)
- 2-(3-Aminopyrrolidin-1-yl)-N-butylacetamide (CAS 1249373-69-0)
- (but-3-en-2-yl)(methyl)amine (CAS 22459-78-5)
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- Semaglutide impurity 214 (CAS CATO-C4X-2226214)
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