120244-32-8 4,6(1H,5H)-Pyrimidinedione, dihydro-5-(2-thienylmethylene)-2-thioxo- 5-(2-Thiophene)-2-thiobarbituric acid 5-(2-Thiophenylidene)-2-thiobarbituric acid 5-Ttba Dihydro-5-(2-thienylmethylene)-2-thioxo-4,6(1H,5H)-pyrimidinedione