Home Categories 1-(4-Sulfophenyl)-3-methyl-5-pyrazolone
A7292112

1-(4-Sulfophenyl)-3-methyl-5-pyrazolone , 98% , 89-36-1

Synonym(s):
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one;4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid

CAS NO.:89-36-1

Empirical Formula: C10H10N2O4S

Molecular Weight: 254.26

MDL number: MFCD00020756

EINECS: 201-901-3

Pack Size Price Stock Quantity
5g RMB23.20 In Stock
25G RMB231.20 In Stock
100G RMB799.20 In Stock
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Update time: 2022-07-08

PRODUCT 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)

Description and 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.

Safety

Symbol(GHS) 
GHS05
Signal word  Danger
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

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