1H-benzimidazole-1-carboxylic acid, 2-[(methoxycarbonyl)amino]-, ethyl ester InChI=1/C12H13N3O4/c1-3-19-12(17)15-9-7-5-4-6-8(9)13-10(15)14-11(16)18-2/h4-7H,3H2,1-2H3,(H,13,14,16 ethyl 2-[(methoxycarbonyl)amino]-1H-benzimidazole-1-carboxylate