-
Name
2,4-dihydro-2,5-diphenyl-3H-Pyrazol-3-one
- EINECS
- CAS No. 4845-49-2
- Article Data73
- CAS DataBase
- Density 1.17g/cm3
- Solubility
- Melting Point
- Formula C15H12 N2 O
- Boiling Point 368.7°Cat760mmHg
- Molecular Weight 236.273
- Flash Point 176.8°C
- Transport Information
- Appearance
- Safety Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic fumes of NOx.
- Risk Codes
-
Molecular Structure
- Hazard Symbols
- Synonyms 2-Pyrazolin-5-one,1,3-diphenyl- (6CI,7CI,8CI); 1,3-Diphenyl-2-pyrazolin-5-one; NSC 59778
- PSA 32.67000
- LogP 2.32820
1,3-Diphenyl-5-pyrazolone Chemical Properties
IUPAC Name: 2,5-Diphenyl-4H-pyrazol-3-one
Molecular Formula: C15H12N2O
Molecular Weight: 236.29
Freely Rotating Bonds: 2
Polar Surface Area: 23.55 Å2
Index of Refraction: 1.642
Molar Refractivity: 69.36 cm3
Molar Volume: 191.9 cm3
Polarizability: 27.49 ×10-24 cm3
Surface Tension: 50.5 dyne/cm
Density: 1.23 g/cm3
Flash Point: 188.9 °C
Enthalpy of Vaporization: 63.8 kJ/mol
Boiling Point: 388.8 °C at 760 mmHg
Vapour Pressure: 2.99E-06 mmHg at 25°C
The Cas Register Number of 1,3-Diphenyl-5-pyrazolone is 4845-49-2 .The chemical synonyms of 1,3-Diphenyl-5-pyrazolone (CAS NO.4845-49-2) are 3H-pyrazol-3-one, 1,2-dihydro-2,5-diphenyl- ; 5-Pyrazolone, 1,3-diphenyl- and 2,5-diphenyl-1,2-dihydro-3H-pyrazol-3-one .The molecular structure of 1,3-Diphenyl-5-pyrazolone (CAS NO.4845-49-2) is
.
1,3-Diphenyl-5-pyrazolone Uses
1,3-Diphenyl-5-pyrazolone (CAS NO.4845-49-2) is used as organic intermediate .
1,3-Diphenyl-5-pyrazolone Toxicity Data With Reference
| 1. | ipr-mus LDLo:512 mg/kg | CBCCT* “Summary Tables of Biological Tests” National Research Council Chemical-Biological Coordination Center. 2 (1950),135. |
1,3-Diphenyl-5-pyrazolone Consensus Reports
Reported in EPA TSCA Inventory.
1,3-Diphenyl-5-pyrazolone Safety Profile
Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic fumes of NOx.
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