4-oxido-3-phenyl-5,6,7,8-tetrahydroquinoxalin-1-ium 1-oxide

7-chloro-1,2,3,4-tetrahydrophenazine

1,4-dioxaspiro[4.5]decan-6-ol

acetic acid,4,4-dimethoxy-1,2,3,8b-tetrahydrobiphenylen-4a-ol

5,6,7,8-tetrahydrothieno[3,4-b]quinoxaline