- a white, crystalline, slightly water-soluble, levorotatory alkaloid, C19H22N2O, stereoisomeric with cinchonine and similarly derived, used chiefly as a quinine substitute.
Origin of cinchonidine
Examples from the Web for cinchonidine
Historical Examples of cinchonidine
Red bark contains not only quinine and cinchonine, but also cinchonidine.
Cinchonidine, when heated with potassium hydrate, yields quinoline also, and with nitric acid the same products as cinchonine.
Dr de Vrij states that the substance known under this name is a mixture of hydrochlorate of cinchonidine and of cinchonine.
Tartrate of potash and soda indicate, under these circumstances, only the presence of cinchonidine.
If it is chemically pure, cinchonidine belongs to the non-fluorescent alkaloids.
- an alkaloid that is a stereoisomer of cinchonine, with similar properties and uses