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CAS No. 35575-96-3 |
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Product Name Azamethiphos
CAS No. 35575-96-3
Categories Insecticides
NOMENCLATURE
Common name: azamethiphos
IUPAC name: S-6-chloro-2,3-dihydro-2-oxo-1,3-oxazolo[4,5-b]pyridin-3-ylmethyl O,O-dimethyl
phosphorothioate; 6-chloro-3-dimethoxyphosphinoylthiomethyl-1,3-oxazolo[4,5-b]pyridin-2
(3H)-one
Chemical Abstracts name: S-[(6-chloro-2-oxooxazolo[4,5-b]pyridin-3(2H)-yl)methyl] O,O-
dimethyl phosphorothioate
EEC no.: 252-626-0
PHYSICAL CHEMISTRY
Composition: Tech. is >95%.
Mol. wt.: 324.7;
M.f.: C9H10ClN2O5PS;
Form: Colourless
crystals; (tech. is a beige to grey powder).
M.p.: 89C. V.p.: 0.0049 *** (20C).
KOW: logP = 1.05;
Henry: 1.45x10-6 Pa m3 mol-1 (calc.)
S.g./density: 1.60 (20C).
Solubility: In water 1.1 g/l (pH 7, 20C). In dichloromethane 610, benzene 130, methanol 100, n-
octanol 5.8 (all in g/kg, 20C).
Stability: Unstable in acids and alkalis; DT50 (20C)
(calc.): 800 h (pH 5), 260 h (pH 7), 4.3 h (pH 9).
F.p.: >150C (Marcusson, without stirring).
APPLICATIONS
Biochemistry: Cholinesterase inhibitor.
Mode of action: Insecticide with contact and stomach action. Gives rapid knockdown, and has
good residual activity.
Uses: Control of flies and other insect pests in animal houses. Control of mosquitoes,
tsetse flies, cockroaches, and other public hygiene pests.
Formulation types: AE; WP.
MAMMALIAN TOXICOLOGY
Oral: Acute oral LD50 for rats 1180 mg/kg.
Skin and eye: Acute percutaneous LD50 for rats >2150 mg/kg. Mild eye irritant; non-
irritating to skin (rabbits).
Inhalation: LC50 (4 h) for rats >560 mg/m3 air.
NOEL: (90 d) for rats 20 mg/kg diet (2 mg/kg daily), for dogs 10 mg/kg diet (0.3 mg/kg
daily).
ADI: 0.025 mg/kg.
Toxicity class: WHO (a.i.) III; EPA (formulation) III
ECOTOXICOLOGY
Birds: Acute oral LD50 for bobwhite quail 30.2, mallard ducks 48.4 mg/kg. Dietary LC50 (8
d) for bobwhite quail 860, Japanese quail >1000, mallard ducks 700 ppm. Based on the
results of acute laboratory trials, azamethiphos is classified as highly toxic to birds.
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| Company: |
Shanghai Kima Chemical Co., Ltd
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| Contact: |
Ms. sandy grance |
| Address: |
Rm 2219, 22F, Zhongyi Mansion, No. 2, Lane 1040, Caoyang Road, Shanghai, China |
| Postcode: |
200063 |
| Tel: |
0086-21-52661975 |
| Fax: |
0086-21-52661949 |
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