1-Methyl-4-vinylethynyl-4-acetoxypiperidine hydrochloride 106010-29-1 4-(3-Buten-1-ynyl)-1-methyl-4-piperidinol acetate (ester), hydrochloride 4-Piperidinol, 4-(3-buten-1-ynyl)-1-methyl-, acetate (ester), hydrochloride