53725-50-1 BRN 1657128 Pyridine, 1,2,3,6-tetrahydro-1-(N-benzyl-N-methylglycyl)-4-butyl-2,2,6,6-tetramethyl- Pyridine, 1-(N-benzyl-N-methylglycyl)-4-butyl-1,2,3,6-tetrahydro-2,2,6,6-tetramethyl-