5-(3-Bromo-4-methylphenyl)-5-oxopentanoic acid CAS 898767-16-3
| CAS No. | 898767-16-3 |
| Molecular Formula | C12H13BrO3 |
| Molecular Weight | 285.13 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.
5-(3-Bromo-4-methylphenyl)-5-oxopentanoic acid (CAS 898767-16-3) is a high-purity analytical reference standard with the molecular formula C12H13BrO3 and a molecular weight of 285.13 g/mol.
Structurally, 5-(3-Bromo-4-methylphenyl)-5-oxopentanoic acid (C12H13BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 285.13 g/mol, it falls into the medium-molecular-weight range. 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 | C12H13BrO3 |
| Molecular Weight | 285.13 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 chloroform, dichloromethane, ethyl acetate, 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.) | 1987 |
| Halogen Content | Br-containing |
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Recommended Standards
- 5-(3,5-Dichlorophenoxy)-1,3-dimethyl-1H-pyrazole-4-carbaldehyde (CAS 487002-40-4)
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- 5-(4-bromophenyl)-5-oxopentanoic acid methyl ester (CAS 90991-23-4)
- N-(5-((2,6-Dichlorobenzyl)oxy)pyrazin-2-yl)-2-morpholinoacetamide (CAS 642084-65-9)
- 6-(tert-Butoxy)-4-cyclopropoxypicolinamide (CAS 1243311-23-0)
- (3-Chlorophenyl)(2-methylpiperidin-1-yl)methanone (CAS 330468-99-0)
- 4-Nitro-1-propyl-1H-imidazole (CAS 13230-08-5)
- 4-((2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)methyl)-N-(4-hydroxyphenethyl)cyclohexane-1-carboxamide (CAS 143245-96-9)
- 5-(Pyrimidin-5-yl)nicotinaldehyde (CAS 1346687-35-1)
- 4-Bromo-1-(3-methoxyphenyl)pyridin-2(1h)-one (CAS 2090600-22-7)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-3-(o-tolyl)thiourea (CAS 326815-30-9)
- Methyl 2-chloro-4-(difluoromethoxy)benzoate (CAS 97914-56-2)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
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