IDHA/HBED

IDHA chelating agent

– The superb outcome of many years of ADOB®’s inhouse research and development, coupled with intensive cooperation with Bayer AG.
– Protected by the global ADOB® & Bayer patent.
– A five-ligand chelating agent, consisting of four carboxyl donor groups and one amino donor group.
– Forms di- and tri-valent rings of five and six elements when completing its coordination with a cation. The ligand has two chiral carbons and forms stable chelates which are used extensively in agriculture.
– All isomers undergo complete biodegradation, making IDHA the first-ever highly effective biodegradable agent.

HBED chelating agent

– A six-ligand chelating agent, consisting of six donor groups: two hydroxyl groups derived from phenols, two tertiary nitrogens and two carboxyl donors.
– The ligand does not have chiral carbons so does not form optical isomers.
– The most stable and effective chelating agent used in agriculture. Thanks to its high affinity to trivalent ions, it forms an Fe(III)HBED chelate featuring the current highest stability constant (log K= 39).
– The production process is protected by the global ADOB® patent.

Spatial structure of IDHA
C – carbon, N – nitrogen, H – hydrogen, Fe – iron, O – oxygen

Spatial structure of HBED
C – carbon, N – nitrogen, H – hydrogen, Fe – iron, O – oxygen