3-(2,6-Dichlorophenyl)-5-methyl-N-(4-((trifluoromethyl)thio)phenyl)isoxazole-4-carboxamide CAS 153948-64-2
| CAS No. | 153948-64-2 |
| Molecular Formula | C18H11Cl2F3N2O2S |
| Molecular Weight | 447.26 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.
3-(2,6-Dichlorophenyl)-5-methyl-N-(4-((trifluoromethyl)thio)phenyl)isoxazole-4-carboxamide (CAS 153948-64-2) is a high-purity analytical reference standard with the molecular formula C18H11Cl2F3N2O2S and a molecular weight of 447.26 g/mol.
Based on its molecular formula C18H11Cl2F3N2O2S, 3-(2,6-Dichlorophenyl)-5-methyl-N-(4-((trifluoromethyl)thio)phenyl)isoxazole-4-carboxamide contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 447.26 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.
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 | C18H11Cl2F3N2O2S |
| Molecular Weight | 447.26 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dichlorophenyl Standards
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Recommended Standards
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- 3-Methoxyisothiazole-4-sulfonyl chloride (CAS 2095410-57-2)
- 4-(5-Methyl-1,3,4-oxadiazol-2-yl)phenylboronic Acid (CAS 913835-70-8)
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- 6,7-Dimethoxy-1,2-dimethyl-1,2,3,4-tetrahydroisoquinoline (CAS 490-53-9)
- 5-Bromo-2-ethyl-1,3-thiazole Hydrochloride (CAS 1609406-77-0)
- (10E,12E)-hexadeca-10,12-dienal (CAS 69977-24-8)
- 3-{[4-(4-methylpiperidin-1-yl)phenyl]carbamoyl}propanoic acid (CAS 899710-39-5)
- N-(Pyridin-2-yl)benzo[d]oxazol-2-amine (CAS 6458-60-2)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)ethanethioamide (CAS 1672655-85-4)
- Des-Pro36-37-Tirzepatide (CAS CATO-CPTD788938)
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