53725-46-5 BRN 1647570 Pyridine, 1,2,3,6-tetrahydro-4-butyl-1-(N,N-diethylglycyl)-2,2,6,6-tetramethyl- Pyridine, 4-butyl-1-(N,N-diethylglycyl)-1,2,3,6-tetrahydro-2,2,6,6-tetramethyl-