6'-Diethylaminoethylaminoapocinchonidine d-tartrate Cinchonan-9-ol, 3,10-didehydro-10,11-dihydro-6'-((2-(diethylamino)ethyl)amino)-, compd. with (R-(R*,R*))-2-dihydroxybutanedioic acid (1:1) GD2907400