136375-81-0 8-(2-Hydroxyethyl)pentacyclo(5.4.0.0(sup 2,6).0(sup 3,10).0(sup 5,9))undecane hydrochloride Ethanol, 2-((octahydro-1,2,4-ethanylylidene-1H-cyclobuta(cd)pentalen-5-yl)amino)-, hydrochloride