753486-90-7

Ethyl 3-hydroxy-1,2-oxazole-4-carboxylate 3-hydroxy-isoxazole-4-carboxylic acid ethyl ester 4-Isoxazolecarboxylic acid, 2,3-dihydro-3-oxo-, ethyl ester 4-Isoxazolecarboxylicacid,2,3-dihydro-3-oxo-,ethylester(9CI)