2-(2-Bromophenyl)-4-(4-methoxybenzylidene)oxazol-5(4H)-one CAS 84156-18-3
| CAS No. | 84156-18-3 |
| Molecular Formula | C17H12BrNO3 |
| Molecular Weight | 358.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(2-Bromophenyl)-4-(4-methoxybenzylidene)oxazol-5(4H)-one is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(2-Bromophenyl)-4-(4-methoxybenzylidene)oxazol-5(4H)-one (CAS 84156-18-3) is a high-purity analytical reference standard with the molecular formula C17H12BrNO3 and a molecular weight of 358.19 g/mol.
Structurally, 2-(2-Bromophenyl)-4-(4-methoxybenzylidene)oxazol-5(4H)-one (C17H12BrNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 358.19 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C17H12BrNO3 |
| Molecular Weight | 358.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 2-((Furan-2-ylmethyl)thio)quinazolin-4(3H)-one (CAS 6956-58-7)
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- (Perfluoro-[1,1'-biphenyl]-4,4'-diyl)bis(hydrazine) (CAS 2200-68-2)
- 2-Bromo-N-((1-phenyl-1H-tetrazol-5-yl)methyl)benzamide (CAS 920462-39-1)
- Phenampromide Hydrochloride (CAS 98348-21-1)
- 7-Chloro-N-(o-tolyl)thiazolo[5,4-d]pyrimidin-2-amine (CAS 1000709-51-2)
- 5-[(1Z)-1-(Dimethylamino)-4,4,4-trifluoro-3-oxobut-1-en-2-yl]-3-phenyl-1,2-oxazole-4-carbonitrile (CAS 339106-85-3)
- 4-Ethoxy-5-iodopyrimidin-2-amine (CAS 2452344-93-1)
- Methyl 2-((4-fluorobenzyl)thio)acetate (CAS 669757-96-4)
- 3-Amino-3-(2,5-dichlorophenyl)propan-1-ol (CAS 1270526-73-2)
- 3-Amino-1-methylindolin-2-one hydrochloride (CAS 161851-25-8)
- 2,2'-((((9H-fluorene-9,9-diyl)bis(naphthalene-6,2-diyl))bis(oxy))bis(methylene))bis(oxirane) (CAS 1238475-45-0)
- Methyl 2-amino-6-(tert-pentyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 351981-10-7)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
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