Patent ID: 8293383

Claim:
A benzo fluoranthene compound represented by the following general formula (I): wherein R 20 is represented by a hydrogen atom, a substituted or unsubstituted alkyl group, or R m ; R 15 represents R m ; and R m is represented by the following general formula (i): R m =—Ar 1 —X 1 (i), wherein Ar 1 represents a substituted or unsubstituted phenylene group; wherein X 1 represents an isopropyl group, a t-butyl group or an adamantyl group; and wherein each of R 11 to R 14 , R 16 to R 19 , R 21 , and R 22 , independently, is represented by R m or is selected from the group consisting of a hydrogen atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, and a substituted or unsubstituted amino group.