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What is biotin?

What is Biotin?


Biotin is a water-soluble vitamin that functions as a coenzyme for five mammalian carboxylases. Biotin, cis-hexahydro-2-oxo-1H-thieno[3,4-d]-imidazoline-4-valeric acid, is a small molecule with the molecular weight of 244.3 dalton. Other synonyms for biotin are D-Biotin, Bios II, Coenzyme R, Vitamin B 7, and Vitamin H. Biotin is a colorless crystalline powder with the chemical formula 
C10H16N2O3S, and is part of the vitamin B2 complex essential for all mammals including humans. Vitamin B2 was found to be a complex of several chemically unrelated heat-stable factors, including niacin, biotin, and pantothenic acid. Furthermore, it is a cofactor for many enzymes in the body and is found in large quantities in liver, egg yolk, milk, and yeast.