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  2. Vitamin B12 - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B12

    This synthesis of vitamin B 12 is of no practical consequence due to its length, taking 72 chemical steps and giving an overall chemical yield well under 0.01%. [140] Although there have been sporadic synthetic efforts since 1972, [ 139 ] the Eschenmoser–Woodward synthesis remains the only completed (formal) total synthesis.

  3. Adenosylcobalamin - Wikipedia

    en.wikipedia.org/wiki/Adenosylcobalamin

    Chemical and physical data; Formula: C 72 H 100 Co N 18 O 17 P: ... and dibencozide, is one of the biologically active forms of vitamin B 12. [1] ... Vitamin B12 ...

  4. Hydroxocobalamin - Wikipedia

    en.wikipedia.org/wiki/Hydroxocobalamin

    Injection of hydroxocobalamin is used to rectify the following causes of vitamin B 12 deficiency (list taken from the drug prescription label published by the U.S. Food and Drug Administration) Dietary deficiency of vitamin B 12 occurring in strict vegetarians and in their breastfed infants (isolated vitamin B 12 deficiency is very rare)

  5. B vitamins - Wikipedia

    en.wikipedia.org/wiki/B_vitamins

    Dietary supplements containing all eight are referred to as a vitamin B complex. Individual B vitamins are referred to by B-number or by chemical name, such as B 1 for thiamine , B 2 for riboflavin , and B 3 for niacin , [ 1 ] [ 2 ] while some are more commonly recognized by name than by number, such as pantothenic acid (B 5 ), biotin (B 7 ...

  6. Vitamin B12 Is a Power Nutrient. Here's How to Know If ... - AOL

    www.aol.com/vitamin-b12-power-nutrient-heres...

    Vitamin B12 requirements are low because we can store up to 2,500 micrograms in the liver,” says Ryan D. Andrews, R.D., C.S.C.S., principal nutritionist at Precision Nutrition. So target just ...

  7. Vitamin B12 total synthesis - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B12_total_synthesis

    The structure of vitamin B 12 was the first low-molecular weight natural product determined by x-ray analysis rather than by chemical degradation. Thus, while the structure of this novel type of complex biomolecule was established, its chemistry remained essentially unknown; exploration of this chemistry became one of the tasks of the vitamin's chemical synthesis.

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