2810-21-1 AI3-34587 NSC 135069 Spiro(2,5-cyclohexadien-1,7'(1'H)-cyclopent(ij)isoquinolin)-4-one, 2',3',8',8'a-tetrahydro-5,6-dimethoxy-, (R)- Spiro(2,5-cyclohexadiene-1,7'(1'H)-cyclopent(ij)isoquinolin)-4-one, 2',3',8',8'a-tetrahydro-5',6'-dimethoxy-, (R)- (9CI) Stepharine Stepharine (8CI)