3-(4-Chlorophenyl)-5-[(4-methylbenzenesulfonyl)methyl]-1,2-oxazole CAS 478048-86-1
| CAS No. | 478048-86-1 |
| Molecular Formula | C17H14ClNO3S |
| Molecular Weight | 347.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
3-(4-Chlorophenyl)-5-[(4-methylbenzenesulfonyl)methyl]-1,2-oxazole (CAS 478048-86-1) is a high-purity analytical reference standard with the molecular formula C17H14ClNO3S and a molecular weight of 347.82 g/mol.
Based on its molecular formula C17H14ClNO3S, 3-(4-Chlorophenyl)-5-[(4-methylbenzenesulfonyl)methyl]-1,2-oxazole contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 347.82 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).
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 | C17H14ClNO3S |
| Molecular Weight | 347.82 g/mol |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- (E)-3-(3,4-dimethoxyphenyl)-2-(4-(4-fluorophenyl)thiazol-2-yl)acrylonitrile (CAS 476671-88-2)
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