1-(2-(6-(tert-Butyl)-1,4-benzodioxanyl)methyl)-4-(2-hydroxyethyl)piperazine dihydrochloride 2-Piperazineethanol, 4-((6-(1,1-dimethylethyl)-2,3-dihydro-1,4-benzodioxin-2-yl)methyl)-, dihydrochloride 53073-56-6 CRL 4001