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| (mengandungi < 2% diastereoisomer I, 30-40% diastereoisomer II, < 3% diastereoisomer III dan 53-67% diastereoisomer IV) | |
| Beta-cypermethrin | Campuran tindak balas yang terdiri daripada pasangan enantiomer—
(R)-α-cyano-3-phenoxybenzyl (1S,3S)-3-(2,2dichlorovinyl)-2,2-dimethylcyclopropane carboxylate; dan (S)-α-cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dichlorovinyl)-2,2dimethylcyclopropanecarboxylate dalam nisbah hampir 2:3 dengan pasangan enantiomer (R)-α-cyano-3-phenoxybenzyl (1S,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate; dan (S)-α-cyano-3-phenoxybenzyl1R,3S)-3-(2,2dichlorovinyl)-(2,2-dimethylcyclopropanecarboxylate atau Campuran tindak balas yang terdiri daripada pasangan enantiomer— (R)-α-cyano-3-phenoxybenzyl (1S)-cis-3-(2,2dichlorovinyl)-2,2-dimethylcyclopropane carboxylate; dan (S)-α-cyano-3-phenoxybenzyl(1R)-cis-3-(2,2dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate dalam nisbah hampir 2:3 dengan pasangan enantiomer— (R)-α-cyano-3-phenoxybenzyl (1S)-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate; dan (S)-α-cyano-3-phenoxybenzyl (1R)-trans-3-(2,2-dichlorovinyl)-2,2- |
