Ondansetron hydrochloride99614-01-4100 % similar Ondansetron hydrochloride dihydrate103639-04-995 % similar Ondansetron99614-02-594 % similar 3-[(Dimethylamino)methyl]-1,2,3,9-tetrahydro-9-methyl-4H-carbazol-4-one hydrochloride99614-70-760 % similar Alosetron hydrochloride122852-69-140 % similar 1,2,3,9-Tetrahydro-9-methyl-4H-carbazol-4-one27387-31-139 % similar Ramosetron hydrochloride132907-72-337 % similar Alosetron122852-42-036 % similar 2,3,4,5-Tetrahydro-5-methyl-1H-pyrido[4,3-B]indol-1-one122852-75-936 % similar 1-Benzyl-2-methylimidazole13750-62-434 % similar 1,2-Dimethyl-1H-indole-3-carboxylic acid20357-15-732 % similar