2,2'-methylenebis(1,3-benzoxazole) InChI=1/C15H10N2O2/c1-3-7-12-10(5-1)16-14(18-12)9-15-17-11-6-2-4-8-13(11)19-15/h1-8H,9H benzoxazole, 2,2'-methylenebis-