1 92L 2-[(4-methylsulfonyl-2-nitro-phenyl)-oxidanyl-methylidene]cyclohexane-1,3-dione 1.000 2 5BQ 2-[2-chloro-4-(methylsulfonyl)benzoyl]cyclohexane-1,3-dione 0.833 3 NTD 2-{hydroxy[2-nitro-4-(trifluoromethyl)phenyl]methylene}cyclohexane-1,3-dione 0.704