
L-Tryptophan (CAS 73-22-3), min. 99.0%, feed and pharma grade, supplied wholesale by Zyntex. Essential amino acid for piglet and poultry feed, infusion solutions and cell culture media. CoA and SDS with every lot.
L-Tryptophan (C11H12N2O2) is a white to slightly yellowish crystalline powder that dissolves only moderately in water. It contains an indole ring, which makes it the largest of the standard amino acids. In the body, it is the precursor of serotonin, melatonin and Nicotinic acid.
Commercial L-tryptophan comes from bacterial fermentation followed by purification. In feed, it is often the fourth limiting amino acid in pig diets after lysine, methionine and L-Threonine, and feed producers add it especially to piglet diets to support feed intake and growth.
High-purity grades go into infusion solutions, pharmaceutical formulations and cell culture media, where regulations in each market govern their use. For related aromatic amino acids, see L-Tyrosine.
Main application areas:
🐖 Pig Feed
Essential amino acid, particularly in piglet diets.
🐔 Poultry Feed
Balances amino acid profiles in low-protein diets.
💊 Pharmaceuticals
Component of infusion solutions and formulations.
🧫 Cell Culture
Amino acid in cell culture media.
| Parameter | Standard Value |
|---|---|
| Product Name | L-Tryptophan |
| CAS Number | 73-22-3 |
| EC Number | 200-795-6 |
| Molecular Formula / Weight | C11H12N2O2 / 204.23 g/mol |
| Assay / Purity | Min 99.0% |
| Appearance | White crystalline powder |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Not classified as hazardous under GHS. Avoid dust formation and contact with eyes. Store in tightly closed containers in a cool, dry place, protected from light. Always consult the Safety Data Sheet (SDS) for full classification and handling instructions.
Why is tryptophan important in piglet feed?
Tryptophan is often limiting in low-protein pig diets. Adequate levels support feed intake and growth, especially in young piglets.
Which grades do you supply?
Feed grade and pharmaceutical grade are available. Please state the grade and quantity when requesting a quote.
How can I get a price and documents?
Prices depend on quantity, packaging and destination. Contact us with your required volume to receive a quotation together with the CoA and SDS.