Nizatidine76963-41-2100 % similar Ranitidine66357-35-563 % similar Ranitidine hydrochloride66357-59-361 % similar 1,1-Ethenediamine, N-[2-[[[5-[(dimethylamino)methyl]-2-furanyl]methyl]thio]ethyl]-N′-methyl-2-nitro-, hydrochloride (1:?)71130-06-861 % similar