SMILES: C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)[O-]
Description: The molecule is the tetracarboxylic acid anion formed by deprotonation of three of the four carboxy groups in ethylenediaminetetraacetic acid (EDTA). It is a conjugate base of an EDTA(2-).