has role has role ethylene glycol bis(2-aminoethyl)tetraacetic acid chebi_ontology [ethylenebis(oxyethylenenitrilo)]tetraacetic acid 3,12-bis(carboxymethyl)-6,9-dioxa-3,12-diazatetradecanedioic acid H4egta CHEBI:30740 EGTA ethylene glycol-O,O'-bis(2-aminoethyl)-N,N,N',N'-tetraacetic acid Egtazic acid A diether that is ethylene glycol in which the hydrogens of the hydroxy groups have been replaced by 2-[bis(carboxymethyl)amino]ethyl group respectively. ethylene glycol bis(beta-aminoethyl ether)-N,N,N',N'-tetraacetic acid tetracarboxylic acid chelator diether tertiary amino compound