4-((Cyclopentylamino)methyl)-1(or 3),4,6,7-tetrahydropyrano(3,4-d)imidazole fumarate (1:2) 4-(N-Cyclopentylaminomethyl)-1(3),4,6,7-tetrahydro-1(3)H-pyrano(3,4-d)imidazole difumarate 95857-72-0 Pyrano(3,4-d)imidazole, 1(or 3),4,6,7-tetrahydro-4-((cyclopentylamino)methyl)-, fumarate (1:2)