1-Piperidineacetamide, N-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)-, monohydrochloride 85564-83-6 N-(1,2,3,5,6,7-Hexahydro-s-indacen-4-yl)-1-piperidineacetamide hydrochloride N-(s-Hydrindacen-4-yl)-2-piperidinoacetamide hydrochloride