137-45-1
137-45-1 structure
- Name: 1,2-Dihydro-3H-pyrazol-3-one
- Chemical Name: 1H-Pyrazol-3(2H)-one
- CAS Number: 137-45-1
- Molecular Formula: C3H4N2O
- Molecular Weight: 84.077
- Create Date: 2018-02-22 08:00:00
- Modify Date: 2026-07-22 13:05:44
| Name | 1H-Pyrazol-3(2H)-one |
|---|---|
| Synonyms |
3H-pyrazol-3-one
1H-pyrazol-3-ol 3-Pyrazolone Pyrazol-5-ol 1H-Pyrazol-3-one 3H-PYRAZOL-3-ONE, 1,2-DIHYDRO 3-Hydroxypyrazole 1H-Pyrazol-5-ol 1,2-dihydropyrazol-3-one 1H pyrazole-3 (2H) - ketone 4-Pyrazolin-3-one Pyrazol-3-ol 1,2-dihydropyrazol-3-on |
| Density | 1.4±0.1 g/cm3 |
|---|---|
| Boiling Point | 326.1±15.0 °C at 760 mmHg |
| Melting Point | 163 °C |
| Molecular Formula | C3H4N2O |
| Molecular Weight | 84.077 |
| Flash Point | 151.0±20.4 °C |
| Exact Mass | 84.032364 |
| PSA | 48.65000 |
| LogP | 0.25 |
| Vapour Pressure | 0.0±0.7 mmHg at 25°C |
| Index of Refraction | 1.612 |
| Hazard Codes | Xi |
|---|
| Precursor 0 | |
|---|---|
| DownStream 1 | |
