cyanocobalamin


cyanocobalamin
A complex of cyanide and cobalamin, as in vitamin B12, in which a cyanide group has filled the sixth coordinate position of the cobalt atom.
- radioactive c. cyano[57Co]cobalamin, cyano[58Co]cobalamin, or cyano[60Co]cobalamin produced by the growth of certain microorganisms on a medium containing cobalt-57, cobalt-58, or cobalt-60; used in the investigation of the absorption and metabolism of c. (vitamin B12).

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cy·a·no·co·bal·a·min -kō-'bal-ə-mən also cy·a·no·co·bal·a·mine -.mēn n VITAMIN B12

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n.

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cy·a·no·co·bal·a·min (si″ə-no″ko-balґə-min) 1. a cobalamin derivative in which the substituent is a cyanide ion; it is the form of vitamin B12 first isolated and hence is the form chemically defined as and the form used as a synonym of that vitamin, although it is actually an artifact of isolation. 2. [USP] a preparation of cyanocobalamin used to treat disorders caused by deficiencies of vitamin B12, particularly to prevent and treat pernicious anemia and other megaloblastic anemias and associated neuropathy; administered subcutaneously or intramuscularly, intranasally, or, occasionally, orally. Abbreviated CN-Cbl. Called also vitamin B12>.

Medical dictionary. 2011.

Look at other dictionaries:

  • Cyanocobalamin — Identifiers CAS number 68 19 9  …   Wikipedia

  • cyanocobalamin Co 57 — cyanocobalamin radioactively labeled with 57Co; official preparations are c. Co 57 capsules [USP] and c. Co 57 oral solution [USP], in which a portion of the molecules is radioactively labeled. The preparations are used in the diagnosis of… …   Medical dictionary

  • cyanocobalamin Co 58 — cyanocobalamin labeled with 58Co, used in the diagnosis of pernicious anemia and other disorders of vitamin B12 absorption. See also Schilling test …   Medical dictionary

  • cyanocobalamin Co 60 — cyanocobalamin in which a portion of the molecules is radioactively labeled with 60Co, used in the diagnosis of pernicious anemia and other disorders of vitamin B12 absorption. See also Schilling test, under test …   Medical dictionary

  • cyanocobalamin — ► NOUN ▪ vitamin B12, a cobalt containing vitamin derived from liver, fish, and eggs, a deficiency of which can cause pernicious anaemia. ORIGIN from Greek kuanos dark blue + a blend of COBALT(Cf. ↑cobalt) and VITAMIN(Cf. ↑vitamin) …   English terms dictionary

  • cyanocobalamin — [sī′ə nō kō bôl′ə min] n. an active form of vitamin B12: also cyanocobalamine …   English World dictionary

  • Cyanocobalamin — Strukturformel Coenzym B12 (=AdoCbl): R = 5 Desoxyadenosyl Cyanocobalamin (=Vitamin B12): R = –C≡N Hydroxycobalamin (=Vitamin B12a): R = OH Methylcobalamin (=MeCbl oder MeB12): R = –CH3 …   Deutsch Wikipedia

  • cyanocobalamin — ciankobalaminas statusas T sritis chemija apibrėžtis Vitamino B₁₂ komponentas. atitikmenys: angl. cyanocobalamin rus. цианкобаламин …   Chemijos terminų aiškinamasis žodynas

  • cyanocobalamin — also cyanocobalamine noun Etymology: cyan + cobalt + vitamin Date: 1950 vitamin B12 1 …   New Collegiate Dictionary

  • cyanocobalamin — Usual form of Vitamin B12 …   Dictionary of molecular biology