Basic information Safety Supplier Related

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

Basic information Safety Supplier Related

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

Product Name:
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
Synonyms:
  • 3-METHYL-1-(P-SULFOPHENYL)-2-PYRAZOLIN-5-ONE 98%
  • 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one, 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid
  • 1-(4-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE
  • 1-(4-SULPHOPHENYL)-3-METHYL-5-PYRAZOLONE
  • 3-Methyl-1-(4-sulfonphenyl)-5-pyrazolone
  • 1-(P-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE
  • 1-(4-Sulfonphenyl)-3-methyl-5-pyrazolone
  • 3-METHYL-1-(P-SULFOPHENYL)-2-PYRAZOLIN-5-ONE
CAS:
89-36-1
MF:
C10H10N2O4S
MW:
254.26
EINECS:
201-901-3
Product Categories:
  • Intermediates of Dyes and Pigments
  • Building Blocks
  • C10
  • Chemical Synthesis
  • Heterocyclic Building Blocks
  • Pyrazoles
  • Heterocyclic Compounds
Mol File:
89-36-1.mol
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3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Chemical Properties

Melting point:
>252 °C (dec.)(lit.)
Density 
1.4456 (rough estimate)
refractive index 
1.5650 (estimate)
pka
pKa 4.90 (H2O t = 37 I = 0.15) (Uncertain)
Water Solubility 
5 g/L (20 ºC)
BRN 
619424
InChIKey
CWJQQASJVVAXKL-UHFFFAOYSA-N
CAS DataBase Reference
89-36-1(CAS DataBase Reference)
EPA Substance Registry System
Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- (89-36-1)
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Safety Information

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

MSDS

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

Chemical Properties

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