4-({4-[(4-methoxyphenyl)ethynyl]phenyl}ethynyl)benzonitrile InChI=1/C24H15NO/c1-26-24-16-14-22(15-17-24)9-8-20-4-2-19(3-5-20)6-7-21-10-12-23(18-25)13-11-21/h2-5,10-17H,1H benzonitrile, 4-[[4-[(4-methoxyphenyl)ethynyl]phenyl]ethynyl]-