Pentetic acid, also known as diethylenetriaminepentaacetic acid (DTPA), is a synthetic polyamino carboxylic acid with eight coordinate bond forming sites that can sequester metal ions and form highly stable DTPA-metal ion complexes. DTPA, along with its calcium and zinc trisodium salts, are the only FDA approved agents for the treatment of internal contamination by transuranics.[A32501] It is currently considered, in all the dosage forms, as a member of the list of approved inactive ingredients for drug products by the FDA.[L2242] DPTA was developed by the pharmaceutical company CIS US and FDA approved on April 14, 2004.[L1469]

Synonyms: Diethylenetriamine pentaacetic acid DTP-A DTPA Pentetic acid DB11322 Diethylene triamine pentaacetic acid Pentetate DBSALT001589 Diethylenetriaminepentaacetic acid Diethylenetriaminepentaacetate