Tags:216972-99-5 Molecular Formula|216972-99-5 MDL|216972-99-5 SMILES|216972-99-5 1H,5H,11H,15H-Xantheno[2,3,4-ij:5,6,7-i'j']diquinolizin-18-ium, 9-[2(or4)-[[[6-[(2,5-dioxo-1-pyrrolidinyl)oxy]-6-oxohexyl]amino]sulfonyl]-4(or2)-sulfophenyl]-2,3,6,7,12,13,16,17-octahydro-, inner salt