| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element having superior light-emitting efficiency and the high luminance. SOLUTION: This electroluminescent element uses the compound expressed with general formula 1-A. (In the formula, X1-X20 are independently a hydrogen atom, a halogen atom, a straight-chain, branch or cyclic alkyl group, a straight- chain, branch or cyclic alkoxyl group, or a substituent or non-substituent aryl group).
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