Title: Thiamethoxam
CAS Registry Number: 153719-23-4
CAS Name: 3-[(2-Chloro-5-thiazolyl)methyl]tetrahydro-5-methyl-N-nitro-4H-1,3,5-oxadiazin-4-imine
Manufacturers' Codes: CGA-293343
Trademarks: Actara (Syngenta); Adage (Syngenta); Cruiser (Syngenta)
Molecular Formula: C8H10ClN5O3S
Molecular Weight: 291.71
Percent Composition: C 32.94%, H 3.46%, Cl 12.15%, N 24.01%, O 16.45%, S 10.99%
Literature References: Broad-spectrum chloronicotinyl insecticide. Prepn: P. Maienfisch, L. Gsell, CA 2100924 (1994 to Ciba-Geigy); eidem, US 5852012 (1998 to Novartis); T. Göbel et al., Pestic. Sci. 55, 343 (1999). Effect on feeding behavior of aphids: P. Harrewijn et al., Brighton Crop Prot. Conf. - Pests Dis. 1998, 813. LC-MS determn in fruits and vegetables: D. Zywitz et al., Deutsche Lebens.-Rundschau 99, 188 (2003). Review of physical properties and field trials: R. Senn et al., ibid. 27-36; of biological activity, metabolism, and physical properties: D. S. Lawson et al., Proc. Beltwide Cotton Conf. 2, 1106-1109 (1999).
Properties: Crystalline powder, mp 139.1°. Soly in water at 25°: 4100 mg/l. Vapor pressure at 25°: 6.6 ´ 10-9 Pa. Log P (octanol/water) at 25°: -0.13. LD50 in rats (mg/kg): 1563 orally, >2000 dermally; LD50 in bobwhite quail, mallard duck (mg/kg): 1552, 576 orally. LC50 (96hr) in rainbow trout, bluegill (mg/l): >100, >114 (Senn).
Melting point: mp 139.1°
Log P: Log P (octanol/water) at 25°: -0.13
Toxicity data: LD50 in rats (mg/kg): 1563 orally, >2000 dermally; LD50 in bobwhite quail, mallard duck (mg/kg): 1552, 576 orally. LC50 (96hr) in rainbow trout, bluegill (mg/l): >100, >114 (Senn).
Use: Insecticide. |