Quaecunque in Germanorum indole admiranda atque imitanda fere censemus, ea in Doellingero maxime splendent.
Beyond the fact that when they are hydrolyzed they yield quinoline and indole, their composition is unknown.
indole in·dole (ĭn'dōl')
A white crystalline compound obtained from coal tar or various plants and found in the intestines and feces as a product of the bacterial decomposition of tryptophan. Also called ketole.
Any of various derivatives of this compound.