2-BUTANONE, 4-(4-HYDROXY-1-PIPERIDINYL)-3-((4-HYDROXY-1-PIPERIDINYL)METHYL)- 4-(4-Hydroxy-1-piperidinyl)-3-((4-hydroxy-1-piperidinyl)methyl)-2-butanone 70525-21-2 BRN 1473073