57671-81-5

2,5-Hexanedione,1-[5-[[5-[(3,3-dimethyl-5-oxo-2-pyrrolidinylidene)methyl]-3,4-dihydro-3,3-dimethyl-2H-pyrrol-2-ylidene]methyl]-3,4-dihydro-3,3-dimethyl-2H-pyrrol-2-ylidene]-4,4-dimethyl-