74389-53-0 | 11,14-Dioxa-2,9-diazaheptadec-16-enoic acid, 4,6,6,16-tetramethyl-10,15-dioxo-, 2-(2-methyl-1-oxo-2-propenyl)oxyethyl ester | 11,14-Dioxa-2,9-diazaheptadec-16-enoic acid, 4,6,6,16-tetramethyl-10,15-dioxo-, 2-(2-methyl-1-oxo-2-propenyl)oxyethyl ester |