Ethyl 3-(4-bromophenyl)propanoate CAS 40640-98-0
| CAS No. | 40640-98-0 |
| Molecular Formula | C11H13BrO2 |
| Molecular Weight | 257.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ethyl 3-(4-bromophenyl)propanoate (CAS 40640-98-0) is a high-purity analytical reference standard with the molecular formula C11H13BrO2 and a molecular weight of 257.12 g/mol.
Ethyl 3-(4-bromophenyl)propanoate (C11H13BrO2) contains a carboxylic acid group, 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, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C11H13BrO2 |
| Molecular Weight | 257.12 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1968 |
| Halogen Content | Br-containing |
Related Ethyl Standards
- methyl 3-(4-bromophenyl)butanoate (CAS 1021735-42-1)
- Ethyl 2-(3-bromophenyl)propanoate (CAS 103807-54-1)
- ethyl 2-(4-bromophenyl)propanoate (CAS 111914-79-5)
- 2-[(3-bromophenyl)methyl]butanoic acid (CAS 1183114-86-4)
- Methyl 2-(4-Bromophenyl)butyrate (CAS 1226228-17-6)
- 2-(3-Bromophenyl)-3-methylbutanoic acid (CAS 1226304-46-6)
- 3-[(3-bromophenyl)methoxy]oxolane (CAS 1344275-68-8)
- 4-(3-Bromophenyl)tetrahydro-2H-pyran-4-ol (CAS 135048-94-1)
Recommended Standards
- Ethyl 3-(3-bromophenyl)propanoate (CAS 40640-97-9)
- Ethyl 3-bromo-5-ethylbenzoate (CAS 272130-62-8)
- Ethyl 2-Bromo-3-phenylpropionate (CAS 39149-82-1)
- Ethyl 4-(2-Bromoethyl)benzoate (CAS 74003-31-9)
- 3-Methoxyfuro[2,3-c]pyridine-2-carboxylic Acid ethyl ester (CAS 521948-13-0)
- ethyl 2-(5-iodopyridin-2-yl)acetate (CAS 1234615-80-5)
- 1-cyclopropyl-2-methylpropan-1-amine hydrochloride (CAS 54187-26-7)
- 6-(trifluoromethyl)-3H-1,3-benzoxazol-2-one (CAS 1806520-96-6)
- 4-((2,5-Difluorophenyl)thio)pentan-2-one (CAS 1342668-97-6)
- N-(2-nitrophenyl)-2-(m-tolylthio)acetamide (CAS 331460-40-3)
- 2,4-Dichloro-7-methoxyquinazolin-6-ol (CAS 866823-27-0)
- 3-(3,4-Dihydro-2H-pyrrol-5-yl)-N-methyl-N-phenylpyridin-2-amine (CAS 1352530-34-7)
- 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-Hexadecafluorononyl (2,2,3,4,4,4-hexafluorobutyl) carbonate (CAS 1980034-97-6)
- Semaglutide impurity 88 (CAS CATO-C4X-222688)
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