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)

EPA Substance Registry System

Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- (89-36-1)

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

• Language:English Provider:3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
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3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Usage And Synthesis

Uses

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one acts as a reagent for the identification of sulfonic acids as efficient ecto-5'-nucleotidase inhibitors. Ecto-5'-nucleotidase inhibition is thought to provide an attractive approach to cancer therapy.

Chemical Properties

BEIGE POWDER

Uses

1-(4-Sulfophenyl)-3-methyl-5-pyrazolone (4-(3-methyl-5-oxo-2-pyrazolin-1-yl) benzoic acid) was used for pre-column derivatization of carbohydrates. It was also used as derivatization reagent in determination of oligosides, mannose and galactose obtained by degradation of galactomannans.

Definition

ChEBI: 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid is an organosulfur compound and a sulfonic acid derivative.

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one(89-36-1)Related Product Information

• Methyl acetate
• Basic Violet 1
• Doxazosin mesylate
• Methanesulfonic acid
• Methanol
• p-Toluenesulfonic acid
• 5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one
• 3-Methyl-2-pyrazolin-5-one
• 2-METHYL-2-PROPENE-1-SULFONIC ACID SODIUM SALT
• Dihydromyrcenol
• Methyl acrylate
• Kresoxim-methyl
• Chlorodimethylphenylsilane
• Methylparaben
• Acetonitrile
• Stannous methanesulfonate
• Paraquat dichloride
• Methyl