175097-45-7 6,7-Dimethyl-2,4-di-1-pyrrolidinyl-7H-pyrrolo(2,3-d)pyrimidine sulfate (1:1) 7H-Pyrrolo(2,3-d)pyrimidine, 6,7-dimethyl-2,4-di-1-pyrrolidinyl-, sulfate (1:1) U-89843D