(E)-2-Butyl-1-(p-carboxybenzyl)-alpha-2-thenylimidazole-5-acrylic acid, monomethanesulfonate 144143-96-4 2-Thiophenepropanoic acid, alpha-((2-butyl-1-((4-carboxyphenyl)methyl)-1H-imidazol-5-yl)methylene)-, (E)-, monomethanesulfonate EPROSARTAN MESYLATE Eprosartan mesylate [USAN:BAN] SK&F 108566-J Teveten