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3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Structure

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one

Chemical Properties

Melting point >252 °C (dec.) (lit.)
Density  1.4456 (rough estimate)
vapor pressure  0.001Pa at 20℃
refractive index  1.5650 (estimate)
storage temp.  Sealed in dry,Room Temperature
pka pKa 4.90 (H2O t = 37 I = 0.15) (Uncertain)
form  Powder
color  White to Orange to Green
Water Solubility  5 g/L (20 ºC)
BRN  619424
InChIKey CWJQQASJVVAXKL-UHFFFAOYSA-N
LogP -2.04 at 23℃ and pH7
CAS DataBase Reference 89-36-1(CAS DataBase Reference)
FDA UNII 60DZB69URT
EPA Substance Registry System Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- (89-36-1)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H314
Precautionary statements P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 1759 8/PG 2
WGK Germany  1
HazardClass  8
PackingGroup  II
HS Code  29331990
NFPA 704:
0
3 0

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3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Chemical Properties,Usage,Production

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