(2,5-Dioxopyrrolidin-1-yl) 3-[2-[2-[2-[8-[3-[3-[3-[[8-[2-[2-[2-[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropoxy]ethoxy]ethoxy]ethylamino]-8-oxooctyl]amino]-3-oxopropoxy]-2,2-bis[[3-[[8-[2-[2-[2-[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropoxy]ethoxy]ethoxy]ethylamino]-8-oxooctyl]amino]-3-oxopropoxy]methyl]propoxy]propanoylamino]octanoylamino]ethoxy]ethoxy]ethoxy]propanoate | 1612220-61-7