5051-62-7 GBZ Guanabenz Guanidine, [(2,6-dichlorobenzylidene)amino]- Hydrazinecarboximidamide, 2-[(2,6-dichlorophenyl)methylene]- N-(2,6-Dichlorobenzylidene)-N'-amidinohydrazine NSC68982 Wy 8678 base Wy-8678 [(2,6-Dichlorobenzylidene)amino]guanidine