A1B3 DOTA

A macrocyclic chelating agent with a 1:3 ligand-to-arm architecture, engineered to form exceptionally stable complexes with paramagnetic ions such as gadolinium(III). Widely used in contrast-enhanced magnetic resonance imaging (MRI) and molecular imaging probes due to its high thermodynamic stability and kinetic inertness.

Additional Chelating Agents: A2B2 DOTA, A4 DOTA.