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Name |
3-Amino-1-phenyl-2-pyrazolin-5-one |
EINECS | N/A |
CAS No. | 4149-06-8 | Density | 1.34g/cm3 |
PSA | 58.69000 | LogP | 0.89640 |
Solubility | N/A | Melting Point |
210-215 °C (dec.)(lit.) |
Formula | C9H9 N3 O | Boiling Point | 312.3°Cat760mmHg |
Molecular Weight | 175.19 | Flash Point | 142.7°C |
Transport Information | N/A | Appearance | Yellowish-brown crystalline powder |
Safety | Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic vapors of NOx. | Risk Codes | 36/37/38 |
Molecular Structure | Hazard Symbols | ||
Synonyms |
2-Pyrazolin-5-one,3-amino-1-phenyl- (6CI,7CI,8CI); 1-Phenyl-3-amino-2-pyrazolin-5-one PAP;1-Phenyl-3-amino-5-pyrazolone; 1-Phenyl-3-aminopyrazolin-5-one;3-Amino-1-phenyl-2-pyrazolin-5-one; 3-Amino-1-phenyl-5-pyrazolone;3-Amino-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole;5-Amino-2,4-dihydro-2-phenyl-3H-pyrazol-3-one; NSC 3336 |
Article Data | 5 |
IUPAC Name: 5-Amino-2-phenyl-4H-pyrazol-3-one
Product Name: 3-Amino-1-phenyl-2-pyrazolin-5-one
The MF of 5-Amino-2-phenyl-4H-pyrazol-3-one (CAS NO.4149-06-8) is C9H9N3O.
The MW of 5-Amino-2-phenyl-4H-pyrazol-3-one (CAS NO.4149-06-8) is 175.19.
Synonyms of 5-Amino-2-phenyl-4H-pyrazol-3-one (CAS NO.4149-06-8): 1-Phenyl-3-amino-4,5-dihydropyrazol-5-on ; 2,4-Dihydro-5-amino-2-phenyl-3H-pyrazol-3-on ; 2,4-Dihydro-5-amino-2-phenyl-3H-pyrazol-3-one ; 3-Amino-1-phenyl-5-pyrazolon ; 3H-Pyrazol-3-one, 5-amino-2,4-dihydro-2-phenyl-
Index of Refraction: 1.672
Apperance: beige powder
Density: 1.34 g/ml
Flash Point: 142.7 °C
Boiling Point: 312.3 °C
Melting Point: 210-215 °C
BRN: 153681
1. | ipr-mus LD :>500 mg/kg | CBCCT* “Summary Tables of Biological Tests“ National Research Council Chemical-Biological Coordination Center. 5 (1953),340. |
Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic vapors of NOx.Safety information of 5-Amino-2-phenyl-4H-pyrazol-3-one (CAS NO.4149-06-8):
Hazard Codes Xi,Xn
Risk Statements
36/37/38 Irritating to eyes, respiratory system and skin
20/21/22 Harmful by inhalation, in contact with skin and if swallowed
Safety Statements
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39 Wear suitable protective clothing, gloves and eye/face protection
WGK Germany 3
RTECS UR0393500