L-tryptophan 

L-tryptophan is the fourth limiting amino acid for piglets and the third limiting amino acid for fattening pigs. 

Product specifications & properties

• Tryptophan content: min. 98%  
• Loss on drying: max. 1%  
• Appearance: white or light brown powder
• Type of synthesis: fermentation
   
• Additional testing: lead, cadmium, mercury and arsenic performed in an external laboratory
• Storage: no special guidelines, store in dry conditions in sealed or closed containers and protect from light and heat
• Stability: 2 years
• Packaging: 10 or 20 kg bags

Regulatory status

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

Manufacturing and supply

WELDING is one of the largest importers of Chinese L-tryptophan (EU Code: 3c440) in Europe and a major exporter to the overseas markets.

_{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.}