( )-Retronecine (+)-Retronecine 1H-Pyrrolizine-7-methanol, 2,3,5,7a-beta-tetrahydro-1-alpha-hydroxy- 1H-Pyrrolizine-7-methanol, 2,3,5,7a-tetrahydro-1-hydroxy-, (1R-trans)- (9CI) 480-85-3 CCRIS 5776 HSDB 3567 RETRONECINE Retronecin Senecifolinene