8aH-cyclohepta(b)thiophene, 2, 4, 5, 6, 7, 8-hexahydro-2, 2, 3-trifluoro-

8alpha-Hydroxyachillin

8alpha-N-Imidazolylriboflavin

8b, 16b-Dihydrodibenzo(g, p)chrysene mixture of cis and trans

8b, 9a-Dihydro-benz(7, 8)aceanthryleno(1, 2-b)oxirene

8b-Benzyl-2-cyclohexyl-3a-hydroxy-1, 3a, 4, 8b-tetrahydropyrrolo(3, 4-b)indol-3(2H)-one

8beta, 11-Dihydroxy-delta(9)-THC

8beta-(Bis(2-chloroethyl)amino)-6, 7-didehydro-3-hydroxy-17-methyl-4, 5alpha-epoxymorphinan

8beta-Hydroxy-dleta(9)-THC

8beta-Hydroxyeremophilenolide

8beta-Hydroxymethyl-delta(1)-tetrahydrocannabinol

8beta-Hydroxyphomenone

8betaH-Cedran-9beta-ol

8H-(1, 3)Oxazolo(3, 4-a)perimidin-10-one

8H-(1, 3, 4)Thiadiazolo(3, 2-a)thieno(2, 3-d)pyrimidin-8-one, 2, 6, 7-trimethyl-

8H-(1, 3, 4)Thiadiazolo(3, 2-a)thieno(2, 3-d)pyrimidin-8-one, 2, 6-diphenyl-

8H-(1, 3, 4)Thiadiazolo(3, 2-a)thieno(2, 3-d)pyrimidin-8-one, 2-(2-ethoxyphenyl)-6, 7-dimethyl-

8H-(1, 3, 4)Thiadiazolo(3, 2-a)thieno(2, 3-d)pyrimidin-8-one, 2-(2-ethoxyphenyl)-6-phenyl-

8H-(1, 3, 4)Thiadiazolo(3, 2-a)thieno(2, 3-d)pyrimidin-8-one, 2-(ethylthio)-6-phenyl-

8H-(1, 3, 4)Thiadiazolo(3, 2-a)thieno(2, 3-d)pyrimidin-8-one, 2-(methylthio)-6-phenyl-