90-31-3

Name 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
CAS 90-31-3
EINECS(EC#) 201-984-6
Molecular Formula C10H9ClN2O
MDL Number MFCD00020750
Molecular Weight 208.64
MOL File 90-31-3.mol
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Chemical Properties

Melting point  128-131 °C(lit.)
Boiling point  382.9±25.0 °C(Predicted)
density  1.32±0.1 g/cm3(Predicted)
form  crystalline solid
pka 2.18±0.50(Predicted)
color  Cream
CAS DataBase Reference 90-31-3(CAS DataBase Reference)
EPA Substance Registry System 3H-Pyrazol-3-one, 2-(3-chlorophenyl)-2,4-dihydro-5-methyl- (90-31-3)

Safety Data

Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
WGK Germany  3
TSCA  TSCA listed
REACH Registrations Active
HS Code  2933119000

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