Pyrazosulfuron-ethyl

Pyrazosulfuron-ethyl

Basic introduction

Pyrazosulfuron is a sulfonylurea herbicide, which has the advantages of low dosage and low toxicity. It belongs to sulfonylurea herbicide, which is a selective internal absorption and conduction herbicide.

Dosage form: 10% wettable powder, 10% dispersible tablet.

Chemical structure type: sulfonylurea

Molecular weight: 414.4

Molecular formula:C₁₄H₁₈N₆O₇S

Chemical name: 5- (4,6-dimethoxypyrimidinyl-2-carbamoyl aminosulfonic-1-methylpyrazole-4-carboxylic acid (ethyl ester)

Physical and chemical properties

Melting point: 181 ~ 182 ℃.

Stability: stable for half a year at 50 ℃, stable to light.

Solubility (mg/l, 20 ℃): water 4.5, acetone 3.17 × 10, chloroform 2.34 × 10, ethane 0.2 × 10, methanol 0.7 × 10。

Vapor pressure (25 ℃): 0.0147mPa.