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A white crystalline compound that acts as a vitamin. Biotin is part of the B complex of vitamins. It influences fat metabolism and growth rates. Biotin is synthesized in the intestinal tract of humans. It is highly concentrated in the liver, kidney, pancreas, Milk, and Egg yolk.

Synonyms and Related Terms

vitamin H; vitamin B7; hexahydro-2-oxo-1H-thieno [3,4-d] imidazole-4-pentanoic acid; biotine (Fr., Ned.); Vitamine B8 (Fr.); biotina (It.); Vitamina H (It.); biotyna (Pol.); Biotin (Deut., Sven.)

Chemical structure



  • ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water, ethanol. Insoluble in naphtha, chloroform.

Composition C10H16N2O3S
CAS 58-85-5
Melting Point 230-232 C
Molecular Weight mol. wt. = 244.32

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 853
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Richard C. Wolbers, Nanette T. Sterman, Chris Stavroudis, Notes for Workshop on New Methods in the Cleaning of Paintings, J.Paul Getty Trust, Los Angeles, 1990
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1272

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