Synonyms: Cobalamin,sulfito- (6CI); Cobinamide, hydroxide sulfite (1:1) (salt), dihydrogenphosphate (ester), inner salt, 3'-ester with 5,6-dimethyl-1-a-D-ribofuranosyl-1H-benzimidazole;Cobinamide, sulfite (1:1) (salt), dihydrogen phosphate (ester), 3'-ester with5,6-dimethyl-1-a-D-ribofuranosylbenzimidazole(8CI); Cobinamide, sulfite phosphate, 3'-ester with 5,6-dimethyl-1-a-D-ribofuranosylbenzimidazole(7CI); Cobinamide, sulfite (1:1) (salt), dihydrogen phosphate (ester), innersalt, 3'-ester with 5,6-dimethyl-1-a-D-ribofuranosyl-1H-benzimidazole; Cobalaminsulfonic acid;Sulfiotcobalamine; Sulfitocobalamin; Vitamin B12-sulfonic acid