115787-68-3 2,6-Diamino-3,5-dihydro-7-(3-thienylmethyl)-4H-pyrrolo(3,2-d)pyrimidin-4-one 4H-Pyrrolo(3,2-d)pyrimidin-4-one, 2,6-diamino-1,5-dihydro-7-(3-thienylmethyl)-, monohydrochloride CI 972 CI-972