53725-48-7 BRN 1650947 Pyridine, 1,2,3,6-tetrahydro-4-butyl-1-(piperidinoacetyl)-2,2,6,6-tetramethyl- Pyridine, 4-butyl-1-(piperidinoacetyl)-1,2,3,6-tetrahydro-2,2,6,6-tetramethyl-