Benzoxazole, 2-(phenylethynyl)-

5-methyl-2-(phenylethynyl)benzoxazole

1-methoxy-4-(4-phenylbuta-1,3-diyn-1-yl)benzene

1-methoxy-4-[4-(4-methoxyphenyl)buta-1,3-diynyl]benzene

2-phenylethynyl phenyl selenide