4-ISOXAZOLECARBOXYLIC ACID

ISOXAZOLE-4-CARBOXYLIC ACID

ISOOXAZOLE-4-CARBOXYLIC ACID

1,2-oxazole-4-carboxylic acid

4-Carboxyisoxazole, 1,2-Oxazole-4-carboxylic acid, 4-Carboxy-1,2-oxazole