The Pymetrozine Pyridines Insecticide

Product Description:

Pymetrozine is a non - cellular insecticide belonging to pyridinethimide or triazinone pesticide. Pymetrozine has tactile and endogenic activity to pests. In vegetation, it may be transported in every xylem and phloem. Therefore, it can be used as a foliar spray and soil remediation agent. Due to its correct transfer properties, newly grown branches can also be effectively covered after spraying stems and leaves.

Common name:  Pymetrozine

Chemical name: 

(E)-4,5-Fihydro-6-methyl-4-((3-pyridinylmethylene)amino)-1,2,4-triazin-3(2H)-one

Molecular formula: C10H11N5O

Structural formula:

Molecular weight: 217.23

CAS No. : 123312-89-0

Physical and chemical properties:

Appearance: white crystalline powder.

Melting point: 217℃.

Vapor pressure (20℃) : < 9.7 × 10^-3 Pa.

Solubility (20℃, g/L) : water, 0.27; Ethanol, 2.25; N-hexane, < 0.01.

Stability: stable to light, heat, weak acid and weak base conditions.

Specification of active drug:

Appearance: white or light powder.

Active ingredient content, % : ≥95.0

Acetone insoluble substance, % : ≤1.0

Moisture, % : ≤1.0

PH range: 6-9

Preparation (25% pymetrozine wettable powder) :

Appearance: light yellow loose powder, no lumps.

Pyrazinone content, % : 25.0

Suspension rate, % : ≥75

Wetting time, S: ≤90

Fineness (through 44mm aperture screen), % : ≥98

Moisture, % : ≤1.5

PH range: 8.0-10.0

Usage：

Pymetrozine has high control effect on aphid, planthopper, leafhopper and whitefly of rice, vegetable, cotton, wheat and fruit tree. This agent has excellent selectivity to homoptera pests, better selectivity to aphid than the best anti-aphid agent at present -- Anti aphid, but also has good internal absorption.