Patent ID: 8766243

Claim:
A compound represented by the following formula (I): wherein R 1 to R 14 are independently a hydrogen atom, a halogen atom, an alkyl group having 2 to 30 carbon atoms, an alkenyl group having 3 to 30 carbon atoms, an alkynyl group having 2 to 30 carbon atoms, a haloalkyl group having 1 to 30 carbon atoms, an alkoxy group having 1 to 30 carbon atoms, a haloalkoxy group having 1 to 30 carbon atoms, an alkylthio group having 1 to 30 carbon atoms, a haloalkylthio group having 1 to 30 carbon atoms, an alkylamino group having 1 to 30 carbon atoms, a dialkylamino group having 2 to 60 carbon atoms, an arylamino group having 6 to 60 carbon atoms, an alkylsulfonyl group having 1 to 30 carbon atoms, a haloalkylsulfonyl group having 1 to 30 carbon atoms, an aromatic hydrocarbon group having 6 to 60 carbon atoms, an aromatic heterocyclic group having 3 to 60 carbon atoms, an alkylsilyl group having 3 to 20 carbon atoms, an alkylsilylethynyl group having 5 to 60 carbon atoms or a cyano group, which groups further may have one or more substituents; and the two alkyl groups of the dialkylamino group having 2 to 60 carbon atoms may combine with each other to form a cyclic structure containing a nitrogen atom; provided that the compound in which all of R 1 to R 14 are hydrogen atoms is excluded.