204992-07-4 2,4-Pyrrolidinedione,3-[(3E,5E,13E,15E)-1,19- dihydroxy-18,20-dimethyl-2,17-dioxo-3,5,7,9,- 11,13,15-docosaheptaenylidene]- 205037-25-8 1,3,6,8-Pyrenetetramine,N,N,N',N',N'',N'',N''',N'''-octakis(4-methylphenyl)- 205105-08-4 2,2':5',2'':5'',2''':5''',2'''':5'''',2'''''-Sexithiophene,5-chloro-3',3'',3''',3'''',3''''',4-hexaoctyl-