1-((1-(4-Methyl-2-(2-(5-nitrofuryl)vinyl)-5-thiazolyl)ethylidene)amino)guanidine sulfate (2:1) 40236-43-9 Guanidine, 1-((1-(4-methyl-2-(2-(5-nitrofuryl)vinyl)-5-thiazolyl)ethylidene)amino)-, sulfate (2:1)