Cycobalamin imwe yevhitamini B complexes, ine yakasimba anti-pernicious anemia effect. Iri izita rakapihwa necrystallization yevhitamini B12, chinhu chakakosha pakukura kwebhakitiriya nemhuka. Kunze kweC, H, O, N, P uye Co, iyo aD-ribose conjugate ye5,6-dimethe-rbenzimidazole chikamu chechimiro chayo. AR Todd et al. isa mberi chimiro chechimiro, chinonzi cyanocobalamin nokuti cyano inobatanidzwa pa cobalt. Iyo yakanyanya kunyura mune aqueous mhinduro ndeye 278,361,548 nm. Muna 1948, E．L.Rickes wekuUnited States naE. Kubva ipapo, chinhu ichi chakawanikwa zvakare kubva kune imwe actinomycete (StrePtomyces griseum).Cyanocobalamin ndiyo inokurawo nguruve nemanhiyo, uye chinhu chimwe chete neprotein yemhuka inodiwa pakuchechenya kwemazai. Vitamin B12, inopiwa kuvarwere vane zvirwere zvinouraya pa 150 micrograms, inogona kuwedzera masero matsvuku eropa kanenge ka2, uye 3-6 micrograms inogonawo kuunza migumisiro. In vivo, inotakurwa muropa nenzira yekusanganiswa netrans-cobalamin protein (a-globular protein), uye iripo muchimiro checoenzyme mumatishu akasiyana. Pamwe chete nefolic acid, inobatanidzwa mumetabolism yemethyl transfer uye inoshanda methyl chizvarwa. Uye uve chinhu chakakosha chepurine, pyrimidine uye imwe biosynthesis.
