TOPRAMEZONE Chemical Properties

Boiling point:

590.5±60.0 °C(Predicted)

Density 

1.49±0.1 g/cm3(Predicted)

solubility 

Chloroform (Slightly, Heated), Water (Slightly, Heated)

pka

6.35±0.50(Predicted)

form 

Solid

color 

Light yellow to yellow

LogP

0.957 (est)

EPA Substance Registry System

Methanone, [3-(4,5-dihydro-3-isoxazolyl)-2-methyl-4-(methylsulfonyl)phenyl](5-hydroxy-1-methyl-1H-pyrazol-4-yl)- (210631-68-8)

Safety Information

Hazard Codes 

T,N

Risk Statements 

61-50/53

Safety Statements 

53-45-60-61

RIDADR 

UN3077 9/PG 3

WGK Germany 

1

Hazardous Substances Data

210631-68-8(Hazardous Substances Data)

TOPRAMEZONE Usage And Synthesis

Uses

Topramezone is a herbicide that belongs to the class of pyrazolones or benzoylpyrazoles. It can be used to control broad leaved weeds and grass weeds in maize crop protection.

Definition

ChEBI: An aromatic ketone that is phenyl 1H-pyrazol-4-yl ketone in which the pyrazolyl group is substituted at positions 1 and 5 by methyl and hydroxy groups, respectively, and in which the phenyl group is substituted at positions 2, 3, and 4 b methyl, 4,5-dihydro-1,2-oxazol-3-yl, and methylsulfonyl groups, respectively. A potent inhibitor of 4-hydroxyphenylpyruvate dioxygenase (HPPD) that is rapily metabolised by corn to non-active substances, it is used as a herbicide for the treatment of broa leaf weeds.

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