1,2,5-oxadiazole, 3-methyl-4-(phenylsulfonyl)- 3-methyl-4-(phenylsulfonyl)-1,2,5-oxadiazole InChI=1/C9H8N2O3S/c1-7-9(11-14-10-7)15(12,13)8-5-3-2-4-6-8/h2-6H,1H