78620-16-3 | 5-Benzoxazolecarboxylic acid, 2-(4,5-dihydro-5-oxo-1,3,4-oxadiazol-2-yl)-7-methoxy-, methyl ester | C12H9N3O6 |
78620-18-5 | 5-Benzoxazolecarboxylic acid, 2-(4,5-dihydro-5-oxo-1,3,4-oxadiazol-2-yl)-, ethyl ester | C12H9N3O5 |
78620-39-0 | 2,5-Benzoxazoledicarboxylic acid, 7-methoxy-, 5-methyl ester, 2-[2-(ethoxycarbonyl)hydrazide] | C14H15N3O7 |