1,3,7-Trimethyl-1H-pyrrolo(2,3-d)pyrimidine-2,4(3H,7H)-dione 1H-Pyrrolo(2,3-d)pyrimidine-2,4(3H,7H)-dione, 1,3,7-trimethyl- 39930-51-3 BRN 0747261