(2-(3-Azabicyclo(3.2.2)non-3-yl)ethyl)guanidine sulfate (2:1) 3-(2-Guanidinoethyl)-3-azabicyclo(3.2.2)nonane sulfate (2:1) 637-15-0 Guanidine, 1-(2-(3-azabicyclo(3.2.2)non-3-yl)ethyl)-, sulfate (2:1)