Task: Please generate a SMILES based on the description below.
Description: The molecule is a pentacarboxylic acid anion. It is a conjugate base of a pentetate(3-). It is a conjugate acid of a pentetate(5-).
Result: O=C([O-])CN(CCN(CCN(CC(=O)[O-])CC(=O)[O-])CC(=O)O)CC(=O)[O-]
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
O=C([O-])CN(CCN(CCN(CC(=O)[O-])CC(=O)[O-])CC(=O)O)CC(=O)[O-]
2-[2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate
The molecule is a pentacarboxylic acid anion. It is a conjugate base of a pentetate(3-). It is a conjugate acid of a pentetate(5-).