As described specifically in the above, {HEAD ~ the benzanthracene derivative} having {TAIL ~ hydrogen atom} at the 12 position of the present invention provides a more excellent chromaticity and a longer life 
having
As described specifically in the above , { HEAD ~ the benzanthracene derivative } having { TAIL ~ hydrogen atom } at the 12 position of the present invention provides a more excellent chromaticity and a longer life
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH