1,2,3,4-Tetrahydro-4-oxo-2-thioxopyrimidine-5-carboxylic acid 2-Thiouracil-5-carboxylic acid 23945-50-8 321-22-2 5-Pyrimidinecarboxylic acid, 1,2,3,4-tetrahydro-4-oxo-2-thioxo- EINECS 245-948-8