کوتنین

Also known as (S)-Cotinine, (S)-(-)-Cotinine, (S)-1-Methyl-5-(3-pyridinyl)-2-pyrrolidinone, (5S)-1-methyl-5-(3-pyridyl)-2-pyrrolidinone, (5S)-1-methyl-5-(3-pyridyl)pyrrolidin-2-one, (5S)-1-methyl-5-(3-pyridyl)-2-pyrrolidone, (5S)-1-methyl-5-pyridin-3-ylpyrrolidin-2-one, (5S)-1-methyl-5-pyridin-3-yl-pyrrolidin-2-one

Cotinine is an alkaloid found in tobacco and is also the predominant metabolite of nicotine, typically used as a biomarker for exposure to tobacco smoke. Cotinine is currently being studied as a treatment for depression, post-traumatic stress disorder (PTSD), schizophrenia, Alzheimer's disease and Parkinson's disease. Cotinine was developed as an antidepressant as a fumaric acid salt, cotinine fumarate, to be sold under the brand name Scotine, but it was never marketed.