4-Carboxy-1,1-dimethyl-piperidinium chloride 2-(diethylamino)ethyl ester hydrochloride 97238-28-3 Dietilaminoetilestere dell'acido N-metil-isonipecotico clorometilato [Italian] Piperidinium, 4-carboxy-1,1-dimethyl-, chloride, 2-(diethylamino)ethyl ester, hydrochloride Sch 2161