Cypermethrin
Features:
1) Chemical name: (±) α-cyano-(3-phenoxy) benzyl-(1R, S)-cis, trans,
2-dimethyl-3-(2, 2-dichlorovinyl) cyclopropanecarboxylate
2) Molecular formula: C22H19Cl2NO3
3) Molecular weight: 416.35
4) Specification: 95% tech, 5%, 10%, 25% EC
5) Physical and chemical properties:
a) Yellow to brownish-red viscous liquid, turning into viscous semi-solid after
long storage
b) Difficultly dissolved in water and easily dissolved in hexane, acetone, xylene,
trichloro methane and most other organic solvents
c) Stable to light and heat and in weak acidic and neutral conditions
d) Easily hydrolyzed in alkaline medium
6) Toxicity:
a) Oral LD50: 250 - 4,150mg/kg (rat)
b) Dermal LD50: 4,920mg/kg (rat)
c) Slightly irritating to skin and eyes
d) Highly toxic to fish, honeybees, silkworms and earthworms
7) Functions:
a) High-effective, broad-spectrum, low-toxic and light-stable residue pyrethroid
b) With strong contact and stomach poisoning activity
c) More effective than permethrin, especially to insect spawns and insects which
are resistant to organic phosphorous pesticides
d) Effectiveness can last for four weeks in prevention of flies
e) For control of livestock pests, infection pests, flies and storage pests
Packing:
200kg/drum
Beta-cypermethrin
Features:
1) Chemical name: 2, 2-dimethyl-3-(2, 2-dichlorovinyl) cyclopropane car boxyate-
α-cyano-(3-phenoxy)- benzy lester
2) Molecular formula: C22H19Cl2NO3
3) Molecular weight: 416.35
4) Specification: 95% tech, 27% tech oil, 4.5% EC
5) Physical and chemical properties:
a) White or milky yellow crystal or powder
b) Difficultly dissolved in water and easily dissolved in ketone, aromatic hydrocarbon
and alcohol
c) Stable in neutral and weak acidic condition
d) Easily decomposed in alkaline
e) Undecomposed for two years when stored under normal temperatures
6) Toxicity:
a) Oral LD50: 649mg/kg (rat)
b) Dermal LD50: 1,830mg/kg (rat)
c) Irritating to skin and membrane
d) Highly toxic to fish, honeybees, silkworms and earthworms
7) Functions:
a) With high killing ability and rapid knock down function to insects by contact
and stomach toxicity
b) Active and broad insect killer
c) Effectively kills lepidoptera, hemiptera, diptera, homoptera, coleoptera and
injurious insects on cotton, vegetables, fruit, trees and other crops
d) Effectively kills such injurious insects as mosquitos, cockroaches, fleas,
bugs and ants
e) With 2 times effectiveness of cypermethrin
Packing:
1) Tech: 25kg/drum
2) 27% tech oil: 180kg/drum
Alpha-cypermethrin
Features:
1) Chemical name: (±) α-cyano-(3-phenoxy) benzyl-(1R,S)-cis, trans,
2-dimethyl-3-(2,2-dichlorovinyl) cyclopropanecarboxylate
2) Molecular formula: C22H19Cl2NO3
3) Molecular weight: 416.35
4) Specification: 95% tech, 5%, 10% EC
5) Physical and chemical properties:
a) White or milky yellow crystal or powder
b) Difficultly dissolved in water and easily dissolved in ketone, aromatic hydrocarbon
and alcohol
c) Stable in neutral and weak acidic condition
d) Easily decomposed in alkaline
e) Undecomposed for two years when stored under normal temperatures
6) Toxicity:
a) Oral LD50: 60 - 80mg/kg (rat)
b) Dermal LD50: above 2,000mg/kg (rat)
c) No irritating to skin and membrane
d) Highly toxic to fish, honeybees, silkworms and earthworms
7) Functions:
a) Broad spectrum insect killer
b) Widely used for controlling various pests on cotton, vegetables, fruit, and
other crops
c) Used for controlling hygienically pests outside
Packing:
Tech: 25kg/drum
