2-(Mesyloxymethyl)-3-methyl-4-nitropyridine Methanesulfonate is an intermediate in the synthesis of 2-[[(3-Methyl-4-nitro-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole (M324400). 2-[[(3-Methyl-4-nitro-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole is a drug impurity of Lansoprazole, which is a proton pump inhibitor and used totreat stomach and intestinal ulcers.