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  2. Vitamin B12 - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B12

    Chemical and physical data; Formula: C 63 H 88 Co N 14 O 14 P: ... Vitamin B 12, also known as ... whose chemical conversion to vitamin B 12 was previously reported.

  3. Vitamin D - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D

    Vitamin D 3 was shown to result from the ultraviolet irradiation of 7-dehydrocholesterol. Although a chemical nomenclature for vitamin D forms was recommended in 1981, [13] alternative names remain commonly used. [3] Chemically, the various forms of vitamin D are secosteroids, meaning that one of the bonds in the steroid rings is broken. [14]

  4. Cholecalciferol - Wikipedia

    en.wikipedia.org/wiki/Cholecalciferol

    Low levels of vitamin D3 are more commonly found in individuals living in northern latitudes or with other reasons for a lack of regular sun exposure, including being housebound, frail, elderly, or obese, having darker skin, and wearing clothes that cover most of the skin. [23] [24] Supplements are recommended for these groups of people. [24]

  5. C63H88CoN14O14P - Wikipedia

    en.wikipedia.org/wiki/C63H88CoN14O14P

    The molecular formula C 63 H 88 CoN 14 O 14 P (molar mass: 1355.36 g/mol) may refer to: Vitamin B12; Cyanocobalamin (Artificial B12)

  6. 7-Dehydrocholesterol - Wikipedia

    en.wikipedia.org/wiki/7-Dehydrocholesterol

    7-Dehydrocholesterol (7-DHC) is a zoosterol that functions in the serum as a cholesterol precursor, and is photochemically converted to vitamin D 3 in the skin, therefore functioning as provitamin-D 3. The presence of this compound in human skin enables humans to manufacture vitamin D 3 (cholecalciferol).

  7. Experts Say This Is Real Difference Between Vitamin D and D3

    www.aol.com/experts-real-difference-between...

    Vitamin D is the all encompassing name for a family of similar chemical components needed in the human body, says Courtney ... Vitamin D3 needs for the average adult between the ages 19 and 70 ...

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