CONINE, or Coniine (a-propyl piperidine), C 5 H 17 N, an alkaloid occurring, associated with y-coniceine, conhydrine, pseudoconhydrine and methyl conine, in hemlock (Conium maculatum).
Conhydrine, CsH 17 NO, and pseudoconhydrine are probably stereoisomers, the latter being converted into the former when boiled with ligroin.
Since conhydrine is dehydrated by phosphorus pentoxide into a mixture of a and f3 coniceines, it may be considered an oxyconine.