2,2,4,4-Tetramethylvaleric acid 2-(4-methyl-1-piperazinyl)ethyl ester dihydrochloride 2-(4-Methyl-1-piperazinyl)ethyl 2,2,4,4-tetramethylvalerate dihydrochloride 33421-71-5 Pentanoic acid, 2,2,4,4-tetramethyl-, 2-(4-methyl-1-piperazinyl)ethyl ester, dihydrochloride Valeric acid, 2,2,4,4-tetramethyl-, 2-(4-methyl-1-piperazinyl)ethyl ester, dihydrochloride