Ethyl (3-Bromobenzoyl)acetate CAS 21575-91-7
| CAS No. | 21575-91-7 |
| Molecular Formula | C11H11BrO3 |
| Molecular Weight | 271.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl (3-Bromobenzoyl)acetate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Ethyl (3-Bromobenzoyl)acetate (CAS 21575-91-7) is a high-purity analytical reference standard with the molecular formula C11H11BrO3 and a molecular weight of 271.11 g/mol.
Based on its molecular formula C11H11BrO3, Ethyl (3-Bromobenzoyl)acetate contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 271.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H11BrO3 |
| Molecular Weight | 271.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
Related Ethyl Standards
- Methyl [(2-bromobenzoyl)amino]acetate (CAS 121287-68-1)
- 2-[(4-bromobenzoyl)amino]propanoic acid (CAS 183559-36-6)
- 2-(3-Bromobenzoyl)-N-methylhydrazine-1-carboxamide (CAS 356568-31-5)
- 1-(3-Bromobenzoyl)piperazine (CAS 1016819-18-3)
- 1-(2-Bromobenzoyl)piperazine (CAS 926202-11-1)
- 1-(4-Bromobenzoyl)piperazine (CAS 59939-72-9)
- 4-(3-Bromobenzoyl)oxane (CAS 1339838-78-6)
- 1-(3-Bromobenzoyl)piperidine (CAS 59507-53-8)
Recommended Standards
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- Benzyl 2-bromo-3-oxobutanoate (CAS 362610-29-5)
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- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
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