1-methoxy-4-[(4-nitrophenyl)ethynyl]benzene InChI=1/C15H11NO3/c1-19-15-10-6-13(7-11-15)3-2-12-4-8-14(9-5-12)16(17)18/h4-11H,1H benzene, 1-methoxy-4-[(4-nitrophenyl)ethynyl]-