abstract |
A host material exhibiting high luminous efficiency and excellent lifetime characteristics is provided. A novel organic electroluminescent compound in which a 6-membered ring, a 5-membered ring, a 6-membered ring, a 5-membered ring, and a 6-membered ring are condensed in this order, and an organic electroluminescent device including the same. It can be used to produce OLED devices with very good drive life. [Selection figure] None |