Pymetrozine

Physical and chemical properties:1) Appearance: colorless crystals2) Melting point: 217oC3) Vapor pressure: <4 x 10-3mPa (25oC)4) KOWlogP: -0.185) Henry: <3.0 x 10-6Pa m3 mol-1 (calc.)6) S.g./density: 1.36 (20oC)7) Solubility: a) In water: 0.29g/L (pH 6.5. 25oC) b) In ethanol 2.25, hexane <0.001 (both in g/l. 20oC)8) Stability: stable in air, hydrolysis DT50 4.3 h (pH 1), 25d (pH 5)Technical specifications:Pymetrozine 92% tech. specification:1) Appearance: white to slightly yellow powder2) a.i. content: >=92%3) Insoluble matter in acetone: <=1.0%4) Water: <=1.0%5) PH: 6 ?96) Formulation types: WP; WG7) Analysis: determination by HPLC and UV detectionApplications:1) Action: insecticide selective against Homoptera, causing them to stop feeding.2) Uses: a) Control of aphids and whitefly in vegetables, potatoes, ornamentals, cotton, deciduous and citrus fruit, tobacco, hops; bothjuvenile and adult stages are susceptible.Also for control of plant hoppers in rice.b) Application rates vary from 150g/ha on potatoes to 200 - 300g/ha on ornamentals,tobacco and cotton; 10 - 30g/hl on vegetables,fruit and hops.Toxicology:1) Oral: acute oral LD50 for rats 5820mg/kg2) Skin and eyes: acute percutaneous LD50 for rats >2000mg/kg. Non-irritating to the skin and eyes (rabbits). Not a skin sensitiser to guinea pigs.3) Inhalation: LC50 (4h) >1800mg/m3 air4) NOEL: (2y) for rats 3.7mg/kg b.w. daily5) ADI: 0.03mg/kg b.w.6) Other: non-mutagenic in 5 assay tests, including the Ames test7) Birds: acute oral LD50 for bobwhite quails, mallard ducks >2000mg/kg.LC50 for bobwhite quails (8d) >5200ppm8) Fish: LC50 (96h) for rainbow trout and common carp >100mg/L9) Daphnia: LC50 (48h) 87mg/L10) Algae: LC50 (72h) for Scenedesmus subspicatus 47.1; LC50(5d) for Selenastrum capricornutum 21.7mg/L11) Bees: oral LD50 (48h) >117 (Lig/bee; contact LD50 (48h)>200ig/bee12) Worms: LC50 (14d) for Eisenia foetlda 1098mg/kg soil