The molecule is the structure is based on pmid:19138128. There is not evidence supporting the stereoconfiguration of the (R)-citryl group on N(2), so if you find evidence supporting it being (S) you are welcome to change the structure. It is a conjugate base of a staphyloferrin A.
2-[2-[[(4R)-4-carboxylato-4-[(3,4-dicarboxylato-3-hydroxybutanoyl)amino]butyl]amino]-2-oxoethyl]-2-hydroxybutanedioate