Synonyms: 1H-Benzimidazol-5-amine, 4,5,6,7-tetrahydro-N-cyclopentyl-1-ethyl-, (E)-2-butenedioate (2:3);4,5,6,7-Tetrahydro-5-(cyclopentylamino)-1-ethylbenzimidazole fumarate (2:3);Benzimidazole, 4,5,6,7-tetrahydro-5-(cyclopentylamino)-1-ethyl-, fumarate (2:3);AC1O5K00;LS-32571;(E)-but-2-enedioate; cyclopentyl-(1-ethyl-4,5,6,7-tetrahydro-1H-benzimidazole-1,3-diium-5-yl)azanium;96233-53-3