Fenpropathrin Pyrethroids Insecticide

Common name: Fenpropathrin

Chemical name: 

[cyano-(3-phenoxyphenyl)methyl] 2,2,3,3-tetramethylcyclopropane-1-carboxylate

Molecular formula: C22H23NO3 

Structural formula:

Molecular weight: 349.42

CAS No. : 39515-41-8 

Product description：

Fenpropathrin, or fenopropathrin, is a widely used pyrethroid insecticide in agriculture and household. Fenpropathrin is an ingestion and contact synthetic pyrethroid. Its mode of action is similar to other natural (pyrethrum) and synthetic pyrethroids where in they interfere with the kinetics of voltage gated sodium channels causing paralysis and death of the pest. Fenpropathrin was the first of the light-stable synthetic pyrethroids to be synthesized in 1971, but it was not commercialized until 1980. Like other pyrethroids with an α-cyano group, fenpropathrin also belongs to the termed type II pyrethroids (e.g. cyfluthrin, cyhalothrin, cypermethrin, deltamethrin and esfenvalerate). Type II pyrethroids are a more potent toxicant than type I in depolarizing insect nerves. Application rates of fenpropathrin in agriculture according to US environmental protection agency (EPA) varies by crop but is not to exceed 0.4 lb ai/acre.

Physical and chemical properties:

1.Properties: pure product is white crystal, active drug is brownish yellow liquid or solid.

2. Density (g/mL,25 ºC) : 1.150

3. Relative steam density (g/mL, air =1) : undetermined

4. Melting point (ºC) : pure 49 ~ 50, industrial solid 45 ~ 50

Boiling point (ºC) : undetermined

6. Boiling point (ºC, 13.5mm Hg) : undetermined

7. Refractive index: undetermined

8. Flash point (ºC) : 205

9. Specific rotation (º) : undetermined

10. Spontaneous ignition point or ignition temperature (ºC) : undetermined

Vapor pressure (kPa,25ºC) : undetermined

12. Saturated vapor pressure (kPa,60ºC) : undetermined

13. Heat of combustion (KJ/mol) : undetermined

14. Critical temperature (ºC) : undetermined

15. Critical pressure (KPa) : undetermined

16. Log of the oil-water (octanol/water) partition coefficient: undetermined

17. Explosion limit (%,V/V) : undetermined

18. Lower limit of explosion (%,V/V) : undetermined

19 solubility: soluble in water

Usage：

1. Widely used in insect mite control of fruit trees, cotton, vegetables, tea and other crops

2. Broad spectrum, high efficiency pyrethroid insecticide and acaricide, with touching and repellent effect, can control lepidoptera, hemiptera and mite pests of vegetables, cotton, cereal crops.

3. High efficiency, broad spectrum pyrethroids, with tactile and repellent effects, as well as gastric toxicity. In addition to the general properties of pyrethrin synthesis, it has a good effect on a variety of crops, so it has the advantages of mite removal. It is highly effective against lepidoptera larvae and against diptera or hemiptera pests. It can be used to control pests on cotton, fruit trees, vegetables, tea and flowers. Such as the prevention and control of cotton bollworm, cotton bollworm, in the egg incubation period, before the larvae eat into the bud, bell, prevention and control of mite in the early stage of adult nymphs, with 20% oil, dilute 1000 ~ 2000 times liquid spray, can also treat cotton aphid, bridge insect, leaf roll insect; For the prevention and control of peach-eating insects, dilute 2000 ~ 4000 times spray with 20% emulsion; For the control of diamondback moth and rapeseed, 20% emulsion 3 ~ 4.5ml /100m2, 7.5-11.3kg spray water; Control tea inchworm, tea caterpillars, with 20% emulsion 4000 ~ 5000 times liquid mist. Although this agent has acaricidal effect, it is not suitable for special acaricide.