Amisulpride N-oxide is a degradation product of the dopamine and serotonin (5-HT) receptor antagonist amisulpride .¹It is formed from amisulprideviaoxidation by ozonation or photodegradation.²Amisulpride N-oxide has been found as a contaminant in surface water.³

1.Skibiński, R.Identification of photodegradation product of amisulpride by ultra-high-pressure liquid chromatography-DAD/ESI-quadrupole time-of-flight-mass spectrometryJ. Pharm. Biomed. Anal.56(5)904-910(2011) 2.Bollmann, A.F., Seitz, W., Prasse, C., et al.Occurrence and fate of amisulpride, sulpiride, and lamotrigine in municipal wastewater treatment plants with biological treatment and ozonationJ. Hazard. Mater.320204-215(2016) 3.Diamanti, K.S., Alygizakis, N.A., Nika, M.-C., et al.Assessment of the chemical pollution status of the Dniester River Basin by wide-scope target and suspect screening using mass spectrometric techniquesAnal. Bioanal. Chem.412(20)4893-4907(2020)