quinicine

from The Century Dictionary.

• noun The isomeric alkaloid into which quinine or quinidine is converted by heat, differing from them in being dextrogyrate and amorphous.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) An uncrystallizable alkaloid obtained by the action of heat from quinine, with which it is isomeric.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun organic chemistry, archaic An uncrystallizable alkaloid obtained by the action of heat from quinine, with which it is isomeric.