label: (R,R)-2,2'-(1,2-ethanediylbis(imino(1-methyl-2,1-ethanediyl)))-bis(5-nitro-1H-benz(de)isoquinolone-1,3-(2H)-dione)dimethanesulfonate
label_lc: (r,r)-2,2'-(1,2-ethanediylbis(imino(1-methyl-2,1-ethanediyl)))-bis(5-nitro-1h-benz(de)isoquinolone-1,3-(2h)-dione)dimethanesulfonate