InChI=1S/C24H21N2P/c1-2-10-18(11-3-1)27-23(21-14-6-8-16-25-21)19-12-4-5-13-20(19)24(27)22-15-7-9-17-26-22/h1-3,6-11,14-17H,4-5,12-13H2