| abstract |
An organic EL device is disclosed with high brightness and long life, for which a specific compound represented by the formula (I):where R1 to R4 each independently represents a hydrogen atom, a halogen atom, an amino group, a hydroxyl group, a cyano group, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryloxy group; or R1 to R4 may be coupled together to form a ring is used as a component material. |