7,8,9,10-tetrahydrodibenzo[b,h]biphenylene-5,12-dicarbonitrile InChI=1/C22H14N2/c23-11-19-15-7-3-4-8-16(15)20(12-24)22-18-10-14-6-2-1-5-13(14)9-17(18)21(19)22/h3-4,7-10H,1-2,5-6H dibenzo[b,h]biphenylene-5,12-dicarbonitrile, 7,8,9,10-tetrahydro-