(8-Chloro-2,3,4,5-tetrahydro-1-benzoxepin-4-yl)guanidine sulfate (2:1) 37483-81-1 5-Guanidino-8-chloro-2,3,4,5-tetrahydro-1-benzoxepin hemisulfate Guanidine, (8-chloro-2,3,4,5-tetrahydro-1-benzoxepin-5-yl)-, sulfate (2:1)