Lamotrigine Impurity / N-2 Methyl Lamotrigine Catalogue No. - VL980012 CAS No. - 98410-29-8 Molecular Formula - C10H9Cl2N5 Molecular Weight - 270.11 IUPAC Name - 6-(2,3-dichlorophenyl)-3-imino-2-methyl-1,2,4-triazin-5-amine