DEUTERIDE AND ORGANIC ELECTROLUMINESCENT ELEMENT

To provide a practically useful organic EL device having a low driving voltage and also having a high efficiency and a long lifetime, and a deuteride suitable therefor. A deuteride of a compound represented by the following general formula (1), in which a rate of deuteration of hydrogen atoms on aromatic rings in Ar1 and Ar2 in a compound represented by the following general formula (1) is 40% or more, wherein Ar1 and Ar2 each independently represent a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, or a substituted or unsubstituted linked aromatic group in which two to five of these aromatic rings are linked to each other, and aromatic hydrocarbon groups in the case of these aromatic rings linked are the same as or different from each other.