The so-called hydridocobalamin.
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003903:Deuterium; D006863:Hydrogen-Ion Concentration; D007454:Iodides; D010084:Oxidation-Reduction; D012996:Solutions; D013053:Spectrophotometry; D014805:Vitamin B 12
D007454:Iodides; D012996:Solutions; D003903:Deuterium; D014805:Vitamin B 12