An amino acid containing one or more nitrogen atoms connected through carbon atoms to one or more carboxy groups.
| Member | Definition | Role |
|---|
| 1,2-bis(2-aminophenoxy)ethane-n,n,n',n'-tetraacetic acid | A polyamino carboxylic acid in which bis(carboxymethyl)nitrilo groups are bonded to C-2 and C-2' of 1,1'-[ethane-1,2-diylbis(oxy)]dibenzene. | BAPTA |
| 5,5'-dibromo-1,2-bis(2-aminophenoxy)ethane-n,n,n',n'-tetraacetic acid | A polyamino carboxylic acid, the structure of which is that of BAPTA carrying bromine substituents at C-5 and C-5'. | 5,5'-dibromo-BAPTA |
| 5,5'-dimethyl-bis(2-aminophenoxy)ethane-n,n,n',n'-tetraacetate | A polyamino carboxylic acid, the structure of which is that of BAPTA carrying methyl substituents at C-5 and C-5'. | 5,5'-dimethyl-BAPTA |
| edda | An ethylenediamine derivative in which two of the four amine protons of ethylenediamine are replaced by carboxymethyl groups. | ethylenediaminediacetic acid |
| edetic acid | | ethylenediaminetetraacetic acid |