Synonyms: 5H-Cyclohept(b)indole, 5,6,7,8,9,10-hexahydro-5-(2-(diethylamino)ethyl)-, fumarate (1:1);5,6,7,8,9,10-Hexahydro-5-(2-(diethylamino)ethyl)-5H-cyclohept(b)indole fumarate;AC1O5GN2;LS-56221;17929-92-9;diethyl-[2-(7,8,9,10-tetrahydro-6H-cyclohepta[b]indol-5-yl)ethyl]azanium; (E)-4-hydroxy-4-oxobut-2-enoate