4-(isoquinolin-6-ylethynyl)benzaldehyde InChI=1/C18H11NO/c20-13-16-5-2-14(3-6-16)1-4-15-7-8-18-12-19-10-9-17(18)11-15/h2-3,5-13 benzaldehyde, 4-(6-isoquinolinylethynyl)-