| Endosulfan |
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| insecticide, pesticide, argochemical |
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Endosulfan
Insecticide organochlorine
Features:
1) Common name: endosulfan
2) Structural formula:
3) Chemical name: (1,4,5,6,7,7-hexachloro-8,9,10-trinorborn-5-en-2,3-ylene-
bismethylene)sulfite
4) Molecular formula: C9H6Cl6O3S
5) Molecular weight: 406.9
6) CAS no.: 115-29-7
Physical-chemical properties
1) Composition: Endosulfan is a mixture of two stereoisomers: alpha-endosulfan, endosulfan(I),
stereochemistry 3α, 5aβ, 6α, 9α, 9aβ-, comprising 64 - 67% of the tech. grade
beta-endosulfan, endosulfan(II), stereochemistry 3α, 5aα, 6β, 9β, 9aα-, 29 - 32%
2) Appearance: colorless crystals (tech., cream to brown, mostly beige)
3) Melting point: >=80oC (tech.)
α: 109.2oC
β:213.3oC
4) Vapor pressure: 0.83mPa (20oC) for 2:1 mixture of α- andβ-isomers
5) S.g./density: c.1.8 (20oC) (tech)
6) Solubility:
a) In water alpha-endosulfan 0.32, beta-endosulfan 0.33 (both in mg/L, 22oC)
b) In ethyl acetate, dichloromethane, toluene 200, ethanol c.65, hexane c.24 (all
in g/L, 20oC)
7) Stability: stable to sunlight, slowly hydrolysed in aqueous acids and alkalis,
with the formation of diol and sulfur dioxide
Technical specifications:
Endosulfan 94% tech.:
a) a.i. content: 94.0%
0.10%
b) Water:
2.0%
c) Loss on heating:
d) Acidity (H2SO40.10%
) :
e) Appearance: white to slightly yellow flake
Formulation: 35EC
Endosulfan 35% EC
a) a.i. content : >=35.0%
b) Stability: qualified
c) Water: 0.10%
d) Acidity: 0.10%
e) Appearance: slightly brown transparent liquid
Analysis: GC
Packaging: cardboard drum with plastic bag inside
Applications:
1) Action: non-systemic insecticide and acaricide with contact and stomach action
2) Uses:
a) Control of potato beetles and cotton bollworms
b) Also controls other sucking, chewing and boring insects and mites on a very wide
range of crops
including maize, tobacco, vegetables, fruit (including citrus),
vines, olives, ornamentals, cucurbits, tea, coffee, rice, cereals, sorghum, oilseed
crops, sugar cane, alfalfa, mushrooms, forestry, glasshouse crops, etc.
Toxicology:
1) Oral: acute oral LD50 for rats 70mg (in aqueous suspension)/kg, 110mg
tech. (in oil)/kg, 76mg alpha-isomer/kg, 240mg beta-isomer/kg
for dogs 77mg
tech./kg
2) Skin and eyes: acute percutaneous LD50 for rabbits 359mg(in oil)/kg
for male rats >4000, female rats 500mg/kg
3) Inhalation: LC50 (4h) for male rats 0.0345, female rats 0.0126mg/L
4) NOEL (2y): for rats 15ppm diet
(ly) for dogs 10ppm diet
5) ADI: (JMPR) 0.006mg/kg b.w.
6) Birds: acute oral LD50 for mallard ducks 205 - 245, ring-necked pheasants
620 - 1000mg/kg
7) Fish: highly toxic LC50 (96h) for golden orfe 0.002mg/L water, but
in practical use, should be harmless to wildlife
8) Bees: not toxic to bees under field conditions at an application rate of 1.6L/ha
(560g endosulfan/ha)
Payment Term: L/C at sight
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Kingquenson is one of excellent agrochemical manufacturer and exporter in China, we synthesize and export all kinds of insecticide, herbicide, fungicide, and their intermediate. Advanced technology and good management enable us to provide agrochemicals with premium quality on competitive price. Please do not hesitate to contact us.
Mr. Jason lee
Tel: 86-21-65757793
Mail: Jason@kingquenson.com
Website: www.kingquenson.com
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