出典:Wiktionary
chrysanthemic acid (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/01/14 17:28 UTC 版)
Chrysanthemic acid is a common chemical intermediate in the production of pyrethroid insecticides. One of the four stereoisomers, (1R,3R)- or (+)-trans-chrysanthemic acid (pictured), is the acid moiety of pyrethrin I, which occurs naturally in the seed cases of Chrysanthemum cinerariaefolium. Many synthetic pyrethroids, for example the allethrins, are esters of all four stereoisomers.