''N''-Ethyl-5-trifluoromethyl-2-aminoindane (ETAI) is a

psychoactive drug A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance, that changes functions of the nervous system, and results in alterations in perception, mood, consciousness, cognition or behavior. ...

and

research chemical Research chemicals are chemical substances used by scientists for medical and scientific research purposes. One characteristic of a research chemical is that it is for laboratory research use only; a research chemical is not intended for human o ...

with putative entactogenic effects. It functions as a selective

serotonin Serotonin () or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter. Its biological function is complex and multifaceted, modulating mood, cognition, reward, learning, memory, and numerous physiological processes such as vomiting and vas ...

releasing agent (SSRA). ETAI is the aminoindane analogue of

fenfluramine Fenfluramine, sold under the brand name Fintepla, is a serotonergic medication used for the treatment of seizures associated with Dravet syndrome and Lennox–Gastaut syndrome.https://www.accessdata.fda.gov/drugsatfda_docs/label/2022/212102s003lb ...

and is approximately 50% as neurotoxic in comparison.

References

2-Aminoindanes Trifluoromethyl compounds Serotonin releasing agents Entactogens and empathogens {{psychoactive-stub