A4 DOTA

A tetravalent macrocyclic chelator with four identical reactive arms, offering enhanced metal-binding capacity and multifunctional conjugation capability. Enables simultaneous incorporation of multiple metal ions or combination of different functionalities, ideal for advanced applications in multimodal imaging, materials science, and complex diagnostic probe design.

Additional Chelating Agents: A1B3 DOTA, A2B2 DOTA.