181696-73-1
181696-73-1 structure
- Name: 4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol
- Chemical Name: 5-methyl-3,4-diphenyl-4H-1,2-oxazol-5-ol
- CAS Number: 181696-73-1
- Molecular Formula: C16H15NO2
- Molecular Weight: 253.29600
- Create Date: 2019-01-01 04:11:42
- Modify Date: 2025-09-24 15:55:39
| Name | 5-methyl-3,4-diphenyl-4H-1,2-oxazol-5-ol |
|---|---|
| Synonyms |
Pecoxib Impurity U
QC-1530 Pecoxib impurity 2/5-methyl-3,4-diphenyl-4,5-dihydroisoxazol-5-ol 4,6-Dihydro-5-methyl(3,4-diphenyl)-5-isoxazol Pecoxib SodiuM IMpurity U (5S)-5-Methyl-3,4-diphenyl-4,5-dihydroisoxazol-5-ol Pecoxib-001 3-phenyl-4-phenyl-5-hydroxy-5-methyl-2-isoxazoline Pecoxib Impurity 3（4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol） 5-methyl-3,4-diphenyl-4,5-dihydro-isoxazol-5-ol 5-METHYL-3,4-DIPHENYL-4,5-DIHYDROISOXAZOL-5-OL 5-hydroxy-5-methyl-3,4-diphenylisoxazoline Pecoxib sodium Impurity 3 5-hydroxy-5-methyl-3,4-diphenyl-2-isoxazoline 5-methyl-3,4-diphenyl-4,5-dihydro-1,2-oxazol-5-ol 3,4-diphenyl-4-hydrido-5-hydroxy-5-methylisoxazole Pecoxib Sodium-3 5-Isoxazolol,4,5-dihydro-5-Methyl-3,4-diphenyl 5-hydroxy-5-methyl-3,4-diphenylisoxazole |
| Density | 1.164g/cm3 |
|---|---|
| Boiling Point | 400.52ºC at 760 mmHg |
| Molecular Formula | C16H15NO2 |
| Molecular Weight | 253.29600 |
| Flash Point | 196.028ºC |
| Exact Mass | 253.11000 |
| PSA | 41.82000 |
| LogP | 2.34880 |
| Vapour Pressure | 0mmHg at 25°C |
| Index of Refraction | 1.598 |
| HS Code | 2934999090 |
|---|
| Precursor 3 | |
|---|---|
| DownStream 3 | |
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |