4-(3-Bromo-2-oxopropyl)phenyl acetate CAS 56071-69-3
| CAS No. | 56071-69-3 |
| Molecular Formula | C11H11BrO3 |
| Molecular Weight | 271.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(3-Bromo-2-oxopropyl)phenyl acetate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(3-Bromo-2-oxopropyl)phenyl acetate (CAS 56071-69-3), molecular formula C11H11BrO3 and molecular weight 271.11 g/mol, is a CATO reference standard with documented purity and traceability.
4-(3-Bromo-2-oxopropyl)phenyl acetate (C11H11BrO3) 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 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.
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 | 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.) | 1973 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 1-(5-Bromo-2-nitrophenyl)pyrrolidine (CAS 1033201-57-8)
- 5-Bromo-2-methyl-8-nitro-1,2,3,4-tetrahydroisoquinoline (CAS 104737-00-0)
- 4-Bromo-2-(cyclopropylmethoxy)benzoic acid (CAS 1094474-68-6)
- 3-(4-Bromo-2-ethoxyphenyl)acrylic acid (CAS 1094474-73-3)
- Ethyl 7-bromo-2,3-dihydrobenzofuran-2-carboxylate (CAS 113730-57-7)
- 5-Bromo-2-(cyclopropylmethoxy)benzoic acid (CAS 1154385-13-3)
- 1-(4-Bromo-phenyl)-2-(1,3-dioxolan-2-yl)-ethanone (CAS 117372-49-3)
- 3-Bromo-5-cyclopropylmethoxy-benzoic acid (CAS 1180016-74-3)
Recommended Standards
- 4-(2-Bromo-acetyl)-benzoic acid ethyl ester (CAS 81590-55-8)
- 4-(3-Bromo-4-methylphenyl)-4-oxobutanoic acid (CAS 62903-07-5)
- 3-Bromo-N-(2-(methylamino)-2-oxoethyl)benzamide (CAS 923678-10-8)
- 4-(4-Bromo-2-methylphenyl)-4-oxobutanoic acid (CAS 898767-28-7)
- 1-(2-Thienyl)-2,3-butadien-1-one (CAS 54971-76-5)
- Geranyl b-D-glucoside (CAS 22850-13-1)
- 2-(4-Methoxybenzyl)azepane (CAS 68841-06-5)
- 4-Nitrophenyl S-(acetamidomethyl)-N-(tert-butoxycarbonyl)-L-cysteinate (CAS 58651-76-6)
- (S)-2-(3-methyl-4-nitrophenyl)pyrrolidine (CAS 1390716-52-5)
- 4,4'-(4-Aminopyridine-3,5-diyl)dibenzoic acid (CAS 2396569-97-2)
- 6-Amino-2-chloronicotinaldehyde (CAS 1289137-11-6)
- Hydrazine Carbonate (70% in Water, ca. 7.3mol/L) (CAS 6851-03-2)
- methyl 2,5-difluoro-4-nitro-benzoate (CAS 924868-81-5)
- Cycloaspeptide A (CAS 109171-13-3)
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