Reference

Rapid hydrolysis pathway for a tertiary alcohol ester through intramolecular transesterification in rats

Rapid hydrolysis pathway for a tertiary alcohol ester through intramolecular transesterification in rats. Motoba, Kazuhiko; Nishizawa, Hideo; Suzuki, Takashi; Hamaguchi, Hiroshi; Uchida, Matazaemon (Inst. Life Sci. Res., NIHON NOHYAKU Co., Ltd., Kawachinagano 586, Japan). Biosci., Biotechnol. 134098-61-6 and 141097-12-3 which are cas registry numbers are also used here., Biochem., 56(2), 366-7 (English) 1992. CODEN: BBBIEJ. DOCUMENT TYPE: Journal CA Section: 4 (Toxicology) The tert-Bu ester group in the acaricide fenpyroximate was easily hydrolyzed by a rat liver microsomal system. Apparently, the ester bond cleavage of fenpyroximate occurs mostly via hydroxylation and subsequent intramol. transesterification, rather than by direct enzymic hydrolysis. .

A laboratory-based method to measure relative pesticide and spray oil efficacy against broad mite, Polyphagotarsonemus latus (Banks) (Acari: Tarsonemidae)

A laboratory-based method to measure relative pesticide and spray oil efficacy against broad mite, Polyphagotarsonemus latus (Banks) (Acari: Tarsonemidae). Herron, Grant; Jiang, Laura; Spooner-Hart, Robert (NSW Agriculture, Biological and Chemical Research Institute, Rydalmere 2116, Australia). Experimental and Applied Acarology, 20(9), 495-502 (English) 1996 Chapman & Hall. CODEN: EAACEM. ISSN: 0168-8162. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemical Bioregulators) Six pesticides and two spray oils were tested against Polyphagotarsonemus latus. The chems. were evaluated under lab. condition using a described bioassay. The pesticide toxicities fell into three distinct groups, namely abamectin, conventional pesticides and oils. The relative pesticide toxicities at the LC50 level were abamectin 4.9 ′ 10-8 g/L, endosulfan 1.1 ′ 10-3 g/L, fenpyroximate 2.3 ′ 10-3 g/L, pyridaben 4.1 ′ 10-3 g/L, tebufenpyrad 4.4 ′ 10-3 g/L, dicofol 4.5 ′ 10-3 g/L, petroleum spray oil 3.Several substances with their cas registry numbers 134098-61-6 and 96489-71-3 may be metioned in this study.4 ′ 10-1 g/L and canola oil 4.1 ′ 10-1 g/L. The calcn. of the LC99.9 values allows for resistance monitoring in P. latus and the suggested discriminating concns. are abamectin 1.0 ′ 10-4 g/L; endosulfan, pyridaben and dicofol 1.0 ′ 10-1 g/L fenpyroximate and tebufenpyrad 5.0 ′ 10-1 g/L. .