(E)-1,2,5,6-Tetrahydro-3-pyridinecarboxaldehyde O-2-propynyloxime, monohydrochloride 1,2,5,6-Tetrahydropyridine-3-carboxaldehyde-O-propargyloxime hydrochloride 139886-21-8 3-Pyridinecarboxaldehyde, 1,2,5,6-tetrahydro-, O-2-propynyloxime, monohydrochloride, (E)- RU 47029