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Hydroxocobalamin, also known as vitamin B 12a and hydroxycobalamin, is a vitamin found in food and used as a dietary supplement. [1] As a supplement it is used to treat vitamin B12 deficiency including pernicious anemia. [1] [2] Other uses include treatment for cyanide poisoning, Leber's optic atrophy, and toxic amblyopia.
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.
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]
The National Institutes of Health recommends that the average man consume a mere 2.4 micrograms a day, which is actually the lowest daily recommended dose of any vitamin. “Vitamin B12 ...
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)
How much vitamin B12 do I need per day? Everyone requires a certain amount of B12 depending on their age, starting with .5 mcg per day for infants up to 2.4 mcg for teens and adults and even more ...
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