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Pirimiphos-methyl Insecticide

Posted at: Offers to Sell and Export | Posted on: Fri 18 Jun, 2010 7:45 am | Product Category: Insecticides [73]
 
pirimiphos methyl insecticide
Products Photos CatalogPirimiphos Methyl Photos Catalog



Common name: pirimiphos-methyl; pyrimiphos-mthyl

IUPAC name: O-2-diethylamino-6-methylpyrimidin-4-yl


O, O-dimethyl phosphorothioate

Chemical Abstracts name: O-[2-(diethylamino)-6-methyl-4-pyrimidinyl] O, O-dimethyl phosphorothioate

Cas rn: [29232-93-7]

Physical chemistry

Composition: Tech. material is 90% pure. Mol. wt.: 305.3; M.f.: C11H20N3O3PS; Form: Straw-coloured liquid. M.p.: 15-18 C (tech.) B.p.: Decomposes on distillation. V.p.: 2 mPa (20 C); 6.9 mPa (30 C); 22 mPa (40 C). KOW: logP = 4.2 (20 C, unionised). Henry: 6x10-2 Pa m3 mol-1 (calc.) S.g./density: 1.17 (20 C); 1.157 (30 C). Solubility: In water 11 (pH 5), 10 (pH 7), 9.7 (pH 9) (all in mg/l, 20 C). Miscible with most organic solvents, e.g. alcohols, ketones, halogenated hydrocarbons. Stability: Hydrolysed by concentrated acids and alkalis; DT50 2-117 d (pH range 4-9, most stable at pH 7). In sunlight, aqueous solution had DT50 <1 h. pKa: 4.30; F.p.: >46 C.

Applications

Biochemistry: Cholinesterase inhibitor.

Mode of action: Broad-spectrum insecticide and acaricide with contact and respiratory action. Penetrates the leaf tissue and exhibits translaminar action.

Uses: Control of a wide range of insects and mites in warehouses, stored grain, animal houses, domestic and industrial premises; chewing insects, sucking insects, boring insects, and mites on vegetables, ornamentals, bulb flowers, sugar cane, maize, sorghum, rice, citrus and other fruit, olives, vines, alfalfa, cereals, etc.; and glasshouse pests (especially whitefly, thrips, mealybugs, aphids, and mites) on tomatoes, cucumbers, capsicums, aubergines, and other glasshouse crops.

Formulation types: AE; DP; EC; FU; HN; KN; LS; SG; UL.

Compatibility: Miscible with common insecticides and fungicides. Mixing with strongly alkaline or acidic substances should be avoided.

Mammalian toxicology

Oral: Acute oral LD50 for rats 1414, mice 1180 mg/kg.

Skin and eye: Acute percutaneous LD50 for rats >2000 mg/kg. Slight eye and mild skin irritation (rabbits). Mild skin sensitiser (guinea pigs).

Inhalation: LC50 (4 h) for rats >5.04 mg/l.

NOEL: (2 y) for rats 10 mg/kg diet. No teratogenic effects, and no concentration in adipose tissue. NOEL (90 d) for dogs 0.5, rats 8 mg/kg diet.

ADI: 0.03 mg/kg b.w.

Toxicity class: WHO (a.i.) III; EPA (formulation) III

EC hazard: Xn; R22

Ecotoxicology

Birds: Acute oral LD50 for bobwhite quail 40, Japanese quail 140, mallard ducks 1695 mg/kg.

Fish: LC50 (96 h) for rainbow trout 0.64 mg/l; (48 h) for mirror carp 1.4 mg/l.

Daphnia: EC50 (48 h) 0.21 ug/l; (21 d) 0.08 ug/l.

Algae: EC50 1.0 mg/l.

Bees: Toxic to bees.

Worms: LC50 (14 d) 419 mg/kg.

Environmental fate

Animals: In mammals, the P-O bond is cleaved extensively and N-dealkylation and/or conjugation is a further step in the metabolism of the pyrimidine leaving group.

Plants: Rapidly evaporates. After 2-3 days, <10% remains on plants, including the degradation product O-2-ethylamino-6-methylpyrimidin-4-yl O, O-dimethyl phosphorothioate. On stored cereals, DT50 >2 mo.

Soil/Environment: Soil DT50 (aerobic and anaerobic) is typically 3.5-25 d.



Company Contact:

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Contact Name: Kevin Xu
Company Name: Shanghai Skyblue Chemical Co., Ltd.
Email: Email
Tel: 86-21-58356613
Fax: 86-21-58358362
Street Address: Rm 15A02, Changhang
Mansion, No.800, Zhangyang Road,
Pudong, Shanghai, 200122, China
Website: http://www.skybluechem.com
Member name: skybluechem
Country: China-CN China
Member Since: 17 June 2010
Total Leads: 76 skybluechem Import Export Business Leads
Business focus: Piperonyl Butoxide, D-allethrin, Diethyltoluamide, Cartap, Tetramethrin, Atrazine, Quizalofop-p-ethyl, Tribenuron-methyl, Acetochlor, Ametryn, Simazine
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Product Category: Insecticides [73]
 
 
 

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