with amino groups and at least two carboxyl groups bound to carbon atoms of the same six-membered aromatic ring

Full Title

Compounds containing amino and carboxyl groups bound to the same carbon skeleton > having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton > with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring > with amino groups and at least two carboxyl groups bound to carbon atoms of the same six-membered aromatic ring