1-Methyl-2-mercapto-5-imidazole carboxylic acid, EINECS 264-617-9, 3-Methyl-2-thioxo-2,3-dihydro-1H-imidazol-4-carbonsaeure, USAF EL-97, 2-Mercapto-1-methylimidazole-5-carboxylic acid, 3-methyl-2-thioxo-2,3-dihydro-1H-imidazole-4-carboxylic acid, 1H-Imidazole-4-carboxylic acid,2,3-dihydro-3-methyl-2-thioxo, 2,3-Dihydro-3-methyl-2-thioxo-1H-imidazole-4-carboxylic acid, Imidazole-5-carboxylic acid,1-methyl-2-mercapto