Amino Acids



DL-methionine is an essential amino acid used in animal feed. In addition to its essential role as a protein building block and precursor to cysteine, methionine is involved in the metabolism of compounds such as choline, creatine and adrenaline by releasing a methyl group and forming S-adenosyl-methionine in the methyl donor pathway. Thus, methionine indirectly plays an important role in intermediate metabolism. DL-methionine is the first limiting amino acid for poultry, however, it is the third limiting amino acid for piglets and pigs. It is normally used in food for cats and dogs. 

Product specifications & properties

  • Methionine content: min. 99%  
  • Water and volatile substances: max. 0.3%  
  • Appearance: crystalline powder
  • Type of synthesis: chemical synthesis
  • Storage: store in cool, dry conditions in well-sealed containers, protect from exposure to light
  • Stability: 5 years
  • Packaging: 25 kg bags, 800 kg big bags, or in silo lorries

Regulatory status

Feed additive according to Regulation (EC) 1831/2003, category: amino acids, their salts and analogues

Manufacturing and supply 

WELDING holds the exclusive marketing and sales rights of DL-methionine (EU Code: 3c301), manufactured by JSC Volzhsky Orgsynthese in Russia


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.