Vitamin H / Biotin

Biotin is classified as a vitamin from the B-complex, which means that it is water soluble. It can be found in plants in a free chemical form, in organisms it is bound to lysine residues which are connected to proteins. Biotin has three asymmetric centres. Out of 8 stereoisomers, (3aS, 4S, 6aR), only D-(+)-biotin is fully biologically active as a vitamin. 

Main function

Fatty-acid metabolism and energy metabolism

Biological functions

Biotin is required as a coenzyme for the production of a number of carboxylases. These biotin-dependent enzymes play an important role in several metabolic processes: fatty acid synthesis; gluconeogenesis; propionic acid metabolism; decomposition of leucine; synthesis of DNA and RNA (via purine synthesis).

Benefits for the animal

Improved immune response. Stabilisation of tissue and fat in animal products. Preparation for pregnancy and maintenance of integrity and optimal function of the reproductive organs.

Product specifications & properties

  • Content: min. 97%
  • Loss on drying: max. 1.0%
  • Appearance: white to almost white crystalline powder
  • Type of synthesis: chemical synthesis
  • Additional testing: additional testing in an external laboratory according to P 04 A 01
  • Storage: no special guidelines, store in a dry, cool and dark place away from moisture and heat
  • Stability: 3 years  
  • Packaging: 25 kg cardboard boxes

Regulatory status

Feed additive, category: vitamins, provitamins and chemical substances with similar effects

Manufacturing and supply

WELDING supplies biotin (EU Code: 3a880) from qualified Chinese manufacturers.


Welding GmbH & Co. KG is not the manufacturer of the product. All product information and analytical data serves only as a product description and has been provided to us by the manufacturer. It may not be interpreted as a guarantee of special properties or a guarantee of suitability for specific purposes. The customer is required to examine the suitability of the product for the intended purpose himself/herself before use.