(2-(Tetrahydro-2H-1,5-oxazocin-5(6H)-yl)ethyl)guanidine dihydrochloride 4-(2-Guanidinoethyl)-perhydro-1,5-oxazocine dihydrochloride 98748-90-4 Guanidine, (2-(tetrahydro-2H-1,5-oxazocin-5(6H)-yl)ethyl)-, dihydrochloride