Vitamin B1 / Thiamine Mononitrate

In chemical terms, Vitamin B1 consists of pyrimidine and thiazole moieties linked by a methylene bridge. Isolated and in the pure form of chloride, it is very hygroscopic, which is why the mononitrate salt is usually used. Thiamine hydrochloride is also commonly available.

Main function

Carbohydrate metabolism

Biological functions

The main functions of thiamine are connected to its role as a coenzyme in the form of thiamine pyrophosphate, which is involved in about 25 enzymatic reactions.

  • Carbohydrate metabolism, especially the breakdown of glucose into energy
  • Activation of the key enzyme, which is involved in the production of compounds such as ATP, GTP, NADPH and nucleic acids DNA and RNA
  • Synthesis of acetylcholine, essential for the transmission of nervous impulses

Benefits for the animal

More efficient use of carbohydrates as energy, improved performance, particularly in genetic chains with high meat yield.

Product specifications & properties

  • Content: min. 98%  
  • Loss on drying: max. 1%
  • Appearance: white or almost white crystalline powder, or colourless crystals/granules
  • Type of synthesis: chemical synthesis
  • Additional testing: additional testing in an external laboratory according to P 04 A 01
  • Storage: no special guidelines, store above pallets in the original packaging in a cold and dry place
  • Stability: 3 or 4 years (depending on the manufacturer)
  • Packaging: 25 kg plastic bags / cardboard boxes

Regulatory status

Feed additive, category: amino acids, their salts and analogues

Manufacturing and supply

WELDING supplies Vitamin B1 / thiamine mononitrate (EU Code: 3a821) 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.