2-Piperidin-4,6-di-((4')-N-methylpiperidyl)-oxy-5-methylthiopyrimidin dihydrobromid hydrate 57259-16-2 Pyrimidine, 4,6-bis((1-methyl-4-piperidinyl)oxy)-5-(methylthio)-2-(1-piperidinyl)-, dihydrobromide