The crystal structure of the title compound, C29H33Cl-N2O3.2.25H(2)O,
has been determined. The three C-(piperidyl) bond lengths reflect the
tetracovalency of the piperidine N atom. A strong intermolecular hydro
gen bond between the hydroxyl and the N-oxide of neighbouring molecule
s forms endless chains in the b direction of the C2/c space group. The
positions of the water molecules are partially occupied.