cinchonine

[ sing-kuh-neen, -nin, sin- ]

noun

, Pharmacology.

1. a colorless, crystalline, slightly water-soluble alkaloid, C 19 H 22 N 2 O, a stereoisomer of cinchonidine, obtained from the bark of various species of cinchona and used chiefly as a quinine substitute.

cinchonine

/ ˈsɪŋkəˌniːn /

noun

1. an insoluble crystalline alkaloid isolated from cinchona bark, used to treat malaria. Formula: C 19 H 22 N 2 O

Word History and Origins

Origin of cinchonine¹

First recorded in 1815–25; cinchon(a) + -ine ²

Example Sentences

The operation is then repeated, the ether being replaced by chloroform in which both quinine and cinchonine are soluble.

From Project Gutenberg

Red bark contains not only quinine and cinchonine, but also cinchonidine.

From Project Gutenberg

Cinchonine may be prepared from its sulphate or disulphate in the same way as quinine.

From Project Gutenberg

It is stated that incomplete examinations have detected cinchonine in the bark.

From Project Gutenberg

When cinchonine is distilled with solid potassium hydrate, it yields pyrrol and bases of both the pyridine and quinoline series.

From Project Gutenberg