119493-62-8 Benzamide, N,N'-1,4-butanediylbis(2,3,4-trihydroxy-N-(3-((2,3,4-trihydroxybenzoyl)amino)propyl)- N,N',N'',N'''-Tetra(2,3,4-trihydroxybenzoyl)spermine Tetra-thb-spermine