An organic compound having excellent heat resistance, an excellent amorphous nature, an excellent ability to transport charges, highly excited singlet and triplet states, and excellent solubility in an organic solvent is an organic compound represented by Formula (I): ##STR00001## wherein Ar.sup.1 represents an optionally-substituted aromatic hydrocarbon group, an optionally-substituted aromatic heterocyclic group, or an optionally-substituted alkyl group; Ar.sup.2 represents an optionally-substituted aromatic hydrocarbon group or an optionally-substituted aromatic heterocyclic group; R.sup.1 and R.sup.2 each represent a hydrogen atom or a substituent, and R.sup.1 and R.sup.2 may be bonded to each other to form a ring; and Q is represented by Formula (I-1) or (I-2): ##STR00002## wherein Ar.sup.3 to Ar.sup.5 each represent an optionally-substituted aromatic hydrocarbon group or an optionally-substituted aromatic heterocyclic group, and Ar.sup.3 and Ar.sup.4 may be bonded to each other to form a ring.