Tetramethylserotonin (TeMS) may refer to:
- 5-Methoxy-2,N,N-trimethyltryptamine (5-MeO-2-TMT; 2,ñ,N,N-tetramethylserotonin; 2,ñ,N,N-TeMS)
- 5-Methoxy-7,N,N-trimethyltryptamine (5-MeO-7-TMT; 7,ñ,N,N-tetramethylserotonin; 7,ñ,N,N-TeMS)
- ñ,N,N,O-Tetramethylserotonin (ñ,N,N,O-TeMS; 5-methoxy-ñ,N,N-trimethyltryptamine; 5-MeO-ñ,N,N-TMT)
See also