(2Z)-[2-(Diaminomethylidene)diazanylidene](2,3-dichlorophenyl)acetonitrile ;|2-(2,3-Dichlorphenyl)-2-(guanidinylimino)acetonitrile|2-[(2,3-dichlorophenyl)-cyanomethylene]-hydrazine carboximidamide|2-[Cyano(2,3-dichlorophenyl)methylene]hydrazinecarboximidamide|2-[Cyano(2,3-dichlorophenyl)methylene]hydrazinecarboximidamide;|Lamotrigine EP Impurity B&C mixture|Mixture of Lamotrigine EP Impurity B and Lamotrigine EP Impurity C|N'-carbamimidoyl-2,3-dichlorobenzohydrazonoyl cyanide