Raltegravir EP Impurity B

Chemical Name: 2-[2-[(E)-[(dimethylamino)methylidene]amino]propan-2-yl]-N-[(4-fluorophenyl)methyl]-5-hydroxy-1-methyl-6-oxo-1,6-dihydropyrimidine-4-carboxamide (as per EP); (E)-2-(2-{[(Dimethylamino)methylidene]amino}propan-2-yl)-N-(4-fluorobenzyl)-5-hydroxy-1-methyl-6-oxo-1,6-dihydropyrimidine-4-carboxamide (as per USP)