1:1 mixture of (R)-alpha-Cyano(3-phenoxyphenyl)methyl (1S,3R)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate and (S)-alpha-Cyano(3-phenoxyphenyl)methyl (1R,3S)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate theta-Cypermethrin, 10 μg /μL in cyclohexane theta-Cypermethrin Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, cyano(3-phenoxyphenyl)methyl ester, (1-alpha(S*),3-beta)-(+-)- (1-alpha(s*),3-beta)-(+-)-noxyphenyl)methyleste 3-(2,2-dichloroethenyl)-2,2-dimethyl-,cyano(3-phenoxyphenyl)methylester,(1-alpha(s*),3-beta)-(+-)cyclopropanecarboxylicaci nrdc159 GAMMA-CYPERMETHRIN