title: On the reaction of methylmercuric hydroxide with methylbabalamin.
abstract: The methylmercury-induced dealkylation of the corrinoid coenzyme methylcobalamin, yielding aquocobalamin and dimethylmercury as products, was studied spectrophotometrically at 350 nm using water as a solvent. Rate data were determined for the pH 7-9 region and also at pH 3.37. Evidence is provided which shows that CH3Hg+ serves as the species which accepts the methyl group and also that Hg2+ is methylated more rapidly than CH3Hg+ is.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D007700:Kinetics; D008745:Methylation; D008767:Methylmercury Compounds; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D014805:Vitamin B 12
chemical_list: D008767:Methylmercury Compounds; D014805:Vitamin B 12