16181-97-8 2-Pyrimidinamine, N,N'-(dithiodi-2,1-ethanediyl)bis(1,4,5,6-tetrahydro-, dihydrobromide N,N'-(Dithiodi-2,1-ethanediyl)bis(1,4,5,6-tetrahydro-2-pyrimidinamine) dihydrobromide