3-(4-Methoxyphenyl)-5-(trifluoromethyl)isoxazole-4-carboxylic acid CAS 1159978-83-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1159978-83-2 |
| Molecular Formula | C12H8F3NO4 |
| Molecular Weight | 287.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(4-Methoxyphenyl)-5-(trifluoromethyl)isoxazole-4-carboxylic acid (CAS 1159978-83-2) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C12H8F3NO4. Molecular weight: 287.19 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H8F3NO4 |
| Molecular Weight | 287.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Methoxyphenyl Standards
- Methyl 4-(4-methoxyphenyl)-2-nitrobenzoate (CAS 887243-25-6)
- 2-((2-((4-Methoxyphenyl)amino)-2-oxoethyl)sulfonyl)acetic acid (CAS 338953-92-7)
- 6-Ethyl-2-(4-methoxyphenyl)-2,3-dihydro-1H-imidazo[1,2-b]pyrazole-7-carboxylic acid (CAS 1707567-22-3)
- 1,3-Bis(4-methoxyphenyl)isobenzofuran (CAS 6306-97-4)
- 4-[(4-Methoxyphenyl)(methylsulfonyl)amino]butanoic acid (CAS 1266396-43-3)
- 4-[(2-Methoxyphenyl)(methylsulfonyl)amino]butanoic acid (CAS 1266460-57-4)
- 4-[(3-Methoxyphenyl)(methylsulfonyl)amino]butanoic acid (CAS 1266535-83-4)
- 2-((4-Methoxyphenyl)sulfonyl)-1H-indole (CAS 1505521-29-8)
Recommended Standards
- 4-Nitro-1-((3-(trifluoromethyl)phenoxy)methyl)-1H-pyrazole (CAS 1003993-37-0)
- 7-Nitro-3a-(trifluoromethyl)-2,3,3a,4-tetrahydro-1H-benzo[d]pyrrolo[1,2-a]imidazol-1-one (CAS 1186590-49-7)
- Domperidone Impurity 15 (CAS 142799-22-2)
- Tert-butyl 3-(2-bromoethyl)-3-ethoxyazetidine-1-carboxylate (CAS 2306275-23-8)
- 1-Chloro-4-(difluoromethyl)-2-methylbenzene (CAS 1261673-29-3)
- 7-Methoxyisoquinolin-1(2H)-one (CAS 16027-16-0)
- 2-Chloro-1-ethoxy-3-fluorobenzene (CAS 909122-13-0)
- Tert-butyl (4-(aminomethyl)-2-methylcyclohexyl)carbamate (CAS 2306269-73-6)
- Sodium (S)-9-(3-(aminomethyl)-5,6,7,8-tetrahydro-1,8-naphthyridin-2-yl)-3-(2-methylpyrimidin-5-yl)nonanoate (CAS 1187593-80-1)
- Met(O)14-Exenatide trifluoroacetate salt (CAS 1678417-38-3)
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