- Pentetic acid or diethylene triamine pentaacetic acid (DTPA) is a polyamino carboxylic acid consisting of a diethylenetriamine backbone with five carboxymethyl groups.
- The molecule can be viewed as an expanded version of EDTA and it is used similarly.
- DTPA is a calcium (Ca-DTPA) or zinc salt (Zn-DTPA) that is used to perform medical
- imaging of the brain, kidneys, and lungs.
- It is can also be used to remove certain radioactive materials, except uranium or neptunium, from a person’s body.
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