117680-13-4 Butanediamide, N-(4-((2,3-dihydroxybenzoyl)amino)butyl)-N-(3-((2,3-dihydroxybenzoyl)amino)propyl)-N'-hydroxy-N'-methyl- N(4)-(N-Methyl-N-hydroxysuccinamoyl)-N(1),N(8)-bis(2,3-dihydroxybenzoyl)spermidine N-(4-((2,3-Dihydroxybenzoyl)amino)butyl)-N-(3-((2,3-dihydroxybenzoyl)amino)propyl)-N'-hydroxy-N'-methylbutanediamide Spermexatol