1-(2-(6-Bromo-1,3-dioxol-5-yl)ethyl)guanidine hydrobromide 1-(2-Bromo-4,5-(methylenedioxy)phenethyl)guanidine hydrobromide 17228-47-6 GUANIDINE, 1-(2-BROMO-4,5-(METHYLENEDIOXY)PHENETHYL)-, HYDROBROMIDE