| CAS No. | 61191-50-2 |
| Molecular Formula | C16H14N2O3 |
| Molecular Weight | 282.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures Trans-4-methyl-3-(4-nitrophenyl)-5-phenyl-4,5-dihydroisoxazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Trans-4-methyl-3-(4-nitrophenyl)-5-phenyl-4,5-dihydroisoxazole (CAS 61191-50-2), molecular formula C16H14N2O3 and molecular weight 282.29 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Trans-4-methyl-3-(4-nitrophenyl)-5-phenyl-4,5-dihydroisoxazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 282.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
| Molecular Formula | C16H14N2O3 |
| Molecular Weight | 282.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |