56641-38-4;97906-34-8;1,6-Methano-1H-indene, 2,3,3a,4,5,8-hexachloro-3a,6,7,7a-tetrahydro-, (1-alpha,3a-beta,6-alpha,7a-beta,8R*)-;1,6-Methano-1H-indene, 2,3,3a,4,5,8-hexachloro-3a,6,7,7a-tetrahydro-, (1R,3aR,6S,7aR,8R)-rel-;gamma-Chlordene