105655-70-7

Benzoic acid,4,4'-[6-[3-[(2,5-dioxo-1-pyrrolidinyl)oxy]-3-oxopropyl]-1,4,9,12-tetraoxo-2,11-dithia-5,8-diazadodecane-1,12-diyl]bis-, bis(1,1-dimethylethyl)ester