4,4'-bis(4'-(((((1-(3-(acetylamino)-4-((amino(imino)methyl)amino)-6-carboxy-3,4-dihydro-2H-pyran-2-yl)-2,3-dihydroxypropyl)oxy)carbonyl)amino)methyl))biphenyl
4,4'-bis(4'-(((((1-(3-(acetylamino)-4-((amino(imino)methyl)amino)-6-carboxy-3,4-dihydro-2h-pyran-2-yl)-2,3-dihydroxypropyl)oxy)carbonyl)amino)methyl))biphenyl