Patent ID: 8138668

Claim:
A benzo[a]fluoranthene compound represented by the following general formula (I): wherein at least one of R 14 , R 15 , R 16 , R 20 , and R 21 represents R n , and R 11 to R 22 which are not represented by R n each represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group, and R 11 to R 22 which are not represented by R n may be identical to or different from one another; and wherein R n is selected from the group consisting of a naphthyl group, a phenanthryl group, a fluorenyl group, a fluoranthenyl group, a benzofluoranthenyl group, a pyrenyl group and perylenyl group.