Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A novel bifunctional chelating agent, a derivative of the well-known calcium chelator, BAPTA has been synthesized in 6 steps. The added amino-functionality is likely to expand the use of this chelator. ... A novel bifunctional chelating agent has been synthesized in 6 steps ...