(-)-(R)-5,6,9,10-Tetrahydro-10-((2-methylimidazol-1-yl)methyl)-4H-pyrido(3,2,1-jk)carbazol-11(8H)-one 120635-74-7 4H-Pyrido(3,2,1-jk)carbazol-11(8H)-one, 5,6,9,10-tetrahydro-10-((2-methyl-1H-imidazol-1-yl)methyl)-, (R)- Cilansetron Cilansetron [INN]