7-ethyl-6-methyl-2,3-dihydropyrazolo[5,1-b][1,3]oxazole InChI=1/C8H12N2O/c1-3-7-6(2)9-10-4-5-11-8(7)10/h3-5H2,1-2H pyrazolo[5,1-b]oxazole, 7-ethyl-2,3-dihydro-6-methyl-