from extracts of the excreta , we isolated tetra- and trichlorobenzene with two or three sulphur-containing substituents on the ring , analogous compounds in which thiol groups were converted into sulphoxide and sulphone groups , as well as analogous compounds with a phenolic oxygen in addition to sulphur , and sulphur-containing compounds in which clorine was replaced by hydrogen .
C0038761
sulphone
C0038776
sulphur