CAS: 103879-58-9 Molecular Formula: C5H5NO3 Molecular Weight (g/mol): 127.1 InChI Key: QIACATCUODRSLS-UHFFFAOYSA-N Synonym: 5-methyloxazole-4-carboxylic acid,4-oxazolecarboxylic acid, 5-methyl,5-methyloxazole-4-carboxylic ac,4-oxazolecarboxylicacid, 5-methyl,5-methyl-oxazole-4-carboxylic acid,acmc-209zwx,5-methyloxazole-4-carboxylicacid,5-methyl-4-oxazolecarboxylic acid,4-carboxy-5-methyl-1,3-oxazole,5-methyl oxazole-4-carboxylic acid PubChem CID: 11355484 IUPAC Name: 5-methyl-1,3-oxazole-4-carboxylic acid SMILES: CC1=C(N=CO1)C(=O)O