2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one Structure

2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one

Chemical Properties

Melting point 129 °C
Boiling point 323.23°C (rough estimate)
Density  1.1124 (rough estimate)
vapor pressure  0.002-0.002Pa at 25℃
refractive index  1.5850 (estimate)
storage temp.  2-8°C
solubility  Chloroform (Slightly), Methanol (Slightly)
pka 2.73±0.50(Predicted)
form  Solid
color  Beige
LogP 1.77 at 23℃ and pH6.9-7.1
CAS DataBase Reference 86-92-0(CAS DataBase Reference)
FDA UNII JOR5BL098G
EPA Substance Registry System 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-methylphenyl)- (86-92-0)

Safety

Symbol(GHS) Exclamation Mark (GHS07)
Signal wordWarning
Hazard statements H317-H412
Precautionary statements P273-P501-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501
Hazard Codes  Xn
Risk Statements  22
RTECS  UQ9680000
TSCA  TSCA listed
HS Code  2933199030
NFPA 704:
1
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