Ocadaic acid, also known as OA, is a compound derived from marine organisms such as algae and sponges. It possesses various noteworthy properties, making it an attractive subject in various fields of research. Synonyms for this organic acid include DTX-1, Dynastat, and DSP toxin. DTX-1 refers to the first Diarrhetic Shellfish Poisoning (DSP) toxin discovered, while Dynastat is a trade name for ocadaic acid. This compound has gained significant attention due to its potent inhibition of protein phosphatases, which are enzymes vital for cell signaling and regulation. Moreover, it has been linked to toxic effects on both humans and animals, making it a topic of interest for toxicological studies. In conclusion, ocadaic acid possesses diverse synonyms used in different contexts, highlighting its extensive research presence.