17-n-Pentylsparteine dihydrogen tartrate 7,14-Methano-2H,6H-dipyrido(1,2-a:1',2'-e)(1,5)diazocine, dodecahydro-6-pentyl-, (R-(R*,R*)-2,3-dihydroxybutanedioate (1:1) 75686-51-0