3-Ethyl-4-(4-fluorophenyl)isoxazol-5-amine CAS 915923-98-7
| CAS No. | 915923-98-7 |
| Molecular Formula | C11H11FN2O |
| Molecular Weight | 206.22 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-Ethyl-4-(4-fluorophenyl)isoxazol-5-amine (CAS 915923-98-7), molecular formula C11H11FN2O and molecular weight 206.22 g/mol, is a CATO reference standard with documented purity and traceability.
3-Ethyl-4-(4-fluorophenyl)isoxazol-5-amine (C11H11FN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 3-Ethyl-4-(4-fluorophenyl)isoxazol-5-amine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H11FN2O |
| Molecular Weight | 206.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 2-[2-(4-Fluorophenyl)-1,3-oxazol-4-yl]ethan-1-amine (CAS 1016734-82-9)
- [2-(4-fluorophenyl)-5-methyl-1,3-oxazol-4-yl]methanamine (CAS 1048917-47-0)
- (1-(4-Fluorophenyl)-5-methyl-1H-1,2,3-triazol-4-yl)methanamine (CAS 1049131-33-0)
- 3-Ethyl-1-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 1049162-32-4)
- 3-Ethyl-1-(2-fluorophenyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 1092305-53-7)
- (4-Fluorophenyl)(1-methyl-1H-imidazol-2-yl)methanol (CAS 122155-26-4)
- 3-Ethyl-1-(3-fluorophenyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 1251129-29-9)
- (1-(2-Fluorophenyl)-5-methyl-1H-1,2,3-triazol-4-yl)methanamine (CAS 1267357-55-0)
Recommended Standards
- 3-Chlorothiophene-2,5-diboronic acid (CAS 2096332-07-7)
- 3-Fluoro-4-morpholinobenzonitrile (CAS 588708-64-9)
- 3,4-Diethoxy-1,2,5-thiadiazole-1,1-dioxide (CAS 55904-84-2)
- 3-fluoro-5-(morpholin-4-yl)benzonitrile (CAS 220954-16-5)
- 3-Amino-2-(3,4-dichlorobenzyl)propanoic Acid (CAS 682803-15-2)
- 2-Amino-N-((1-benzylpiperidin-3-yl)methyl)-N-cyclopropylacetamide (CAS 1353957-75-1)
- 1-(Cyclopropylmethyl)-5-methyl-1h-pyrazol-4-amine (CAS 1393100-72-5)
- 2-Butylsuccinic acid (CAS 1457-39-2)
- N-cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (CAS 1350918-92-1)
- Vonoprazan Impurity 115 (CAS CATO-C4X-1020115)
- Methyl 4-(((4-aminocyclohexyl)amino)methyl)benzoate dihydrochloride (CAS 1286273-07-1)
- 4-(2-Nitrovinyl)phenylboronic Acid (CAS 98555-37-4)
- 2,2,2-Trifluoro-1-(isoquinolin-5-yl)ethan-1-ol (CAS 1342236-04-7)
- Neuropeptide Y (3-36) (porcine) trifluoroacetate salt (CAS 143863-88-1)
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