TOPRAMEZONE Property

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

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)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P202Do not handle until all safety precautions have been read and understood.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P308+P313IF exposed or concerned: Get medical advice/attention.

P391Collect spillage. Hazardous to the aquatic environment

P405Store locked up.

TOPRAMEZONE Chemical Properties,Usage,Production

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.