A novel heterocyclic compound for an organic electroluminescent device excellent in long service life and light-emitting characteristics is provided. A cyclic azine compound has at least one substituent (substituent B) selected from a specific group.
提供一种新的
杂环化合物,用于有机电致发光器件,具有长寿命和发光特性优异。该环状腈化合物至少具有来自特定群组的一个取代基(取代基B)。