4-(3-Bromo-4-methylphenyl)-4-oxobutanoic acid CAS 62903-07-5
| CAS No. | 62903-07-5 |
| 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), 4-(3-Bromo-4-methylphenyl)-4-oxobutanoic acid 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.
CATO supplies 4-(3-Bromo-4-methylphenyl)-4-oxobutanoic acid (CAS 62903-07-5), a certified reference material (molecular formula C11H11BrO3, MW 271.11 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H11BrO3, 4-(3-Bromo-4-methylphenyl)-4-oxobutanoic acid 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.) | 1974 |
| Halogen Content | Br-containing |
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Recommended Standards
- 4-(3-Bromo-2-oxopropyl)phenyl acetate (CAS 56071-69-3)
- 4-(4-Bromo-2-methylphenyl)-4-oxobutanoic acid (CAS 898767-28-7)
- 4-(2-Bromo-acetyl)-benzoic acid ethyl ester (CAS 81590-55-8)
- 4-(6-bromopyridine-2-carbonyl)morpholine (CAS 892548-20-8)
- 1-Iodo-4-(octyloxy)benzene (CAS 96693-06-0)
- 4-Bromo-5-cyano-6-(difluoromethyl)pyridine-3-sulfonamide (CAS 1806992-40-4)
- Azo blue indicator (10.5-11.5) (CAS 6059-34-3)
- 2-[(4-Aminophenyl)thio]-N-[4-(aminosulfonyl)-phenyl]propanamide (CAS 913241-96-0)
- 5-Methylthiazole-4-carboxamide (CAS 1259058-14-4)
- (2E)-1-(2-Chlorophenyl)-3-(2-fluorophenyl)prop-2-en-1-one (CAS 1193328-07-2)
- 3-fluoro-2-(methylsulfanyl)benzoic acid (CAS 147460-53-5)
- 5-(Trifluoromethyl)pyridine-3-methanol (CAS 131747-59-6)
- Ethyl 2-(4-fluorophenyl)-5-isopropoxybenzofuran-3-carboxylate (CAS 691856-87-8)
- D-[Thr]5-Semaglutide (CAS CATO-C4X-2226245)
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