Cyclopropanecarboxylicacid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-,cyano[3-(4-hydroxyphenoxy)phenyl]methyl ester

This compound is a hydroxylated metabolite of Cypermethrin (C989000(P)), which is a synthetic pyrethroid insecticide that usually exists as a mixture of cis and trans isomers. Cypermethrin is used as a standard for pesticide detection and is also useful in cannabis testing kits as a component in pesticide mixes (P698230(M)).