Triacetonamine (2,2,6,6-Tetramethyl-4-piperidone) monohydrate is used as an intermediate for the synthesis of pharmaceutical products, pesticides and photostabilizers for polymers. Triacetonamine monohydrate is an artifact of plant and fungal extracts using acetone and ammonium hydroxide or natural occurrence of ammonium salts in various steps of the isolation procedures. Triacetonamine monohydrate is the main component of the pyrolysis oil