1-Oxa-3-azaspiro(4.5)decane-3-carboxylic acid, 6-chloro-2-oxo-, 2-dimethylaminoethyl ester, hydrochloride, (E)- 74242-56-1 Chloro-6 oxa-1 oxo-2 aza-3 (dimethylamino ethoxy carbonyl)-3 spiro(4.5)decane chlorhydrate