2-((5-Hydroxy-4-(hydroxymethyl)-6-methyl-3-pyridyl)methyl)-2-thiopseudourea dihydrochloride 40701-84-6 Carbamimidothioic acid, (5-hydroxy-4-(hydroxymethyl)-6-methyl-3-pyridinyl)methyl ester, 2HCl Pseudourea, 2-((5-hydroxy-4-(hydroxymethyl)-6-methyl-3-pyridyl)methyl)-2-thio-, dihydrochloride