2(1H)-Pyridinethione, 3-((2,6-diamino-4-pyrimidinyl)amino)-6-methoxy- 3-((2,6-Diamino-4-pyrimidinyl)amino)-6-methoxy-2(1H)-pyridinethione 42362-27-6 5-25-12-00318 (Beilstein Handbook Reference) BRN 0820322 NSC 194994