127902-98-1 Butanedioic acid, 2,2'-((1-carboxy-1,4-butanediyl)bis(imino(2-oxo-2,1-ethanediyl)))bis(2-hydroxy- N(2),N(5)-Di-(1-oxo-3-hydroxy-3,4-dicarboxylbutyl)ornithine Staphyloferrin A