Description
Product Overview
L-Tryptophan (CAS CAS 73-22-3, C11H12N2O2, MW 204.23) is a high-purity L-amino acid produced by fermentation/enzymatic synthesis under GMP. As a versatile raw material, it is widely used in cosmetics, food, health supplements and feed nutrition, and meets international registration standards for export documentation. Essential amino acid for sleep, mood & serotonin precursor, food & supplement grade.
Product Specifications & Quality Standard
| Parameter | Specification |
|---|---|
| Chemical Name | L-Tryptophan |
| CAS No. | CAS 73-22-3 |
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.23 |
| Appearance | White crystalline powder |
| Assay | ≥ 98.5% – 99.0% (HPLC) |
| Specific Rotation | Complies with pharmacopoeia standard |
| Heavy Metals | Pb ≤ 1ppm, As ≤ 1ppm, Hg ≤ 0.1ppm |
| Microbiology | TPC ≤ 1000 CFU/g, pathogens negative |
| Storage | Sealed, cool dry place, 24 months |
Key Benefits
- Essential amino acid (cannot be synthesized by the body)
- Precursor of serotonin & melatonin — supports sleep and mood
- Supports protein synthesis and niacin (B3) production
- Supports immune function
- Food, supplement and feed grade
Main Applications
- Cosmetics: moisturizing, repairing, soothing and pH-regulating active in skincare formulations
- Dietary Supplements: amino acid capsules, tablets, powders and sports nutrition
- Food: nutrition fortification, flavor enhancement and functional foods
- Feed: amino acid balancing in animal nutrition
Why Choose Our Bulk L-Tryptophan
- GMP-certified production, ISO 9001 quality system
- HPLC verified purity (98.5-99%+), batch-to-batch consistency
- Full COA, MSDS and third-party testing per batch
- HALAL/KOSHER certified options available
- Food grade / cosmetic grade / feed grade options
- Flexible MOQ, global export to 50+ countries, export documentation support
Recommended Usage
Usage varies by application: cosmetic formulations 0.1-5%; dietary supplements 500-3000 mg/day depending on amino acid; food fortification per nutrition targets. Consult our technical team for specific recommendations.
FAQ About Wholesale L-Tryptophan
Q: What is the CAS number?
CAS 73-22-3.
Q: What purity do you offer?
98.5% – 99.0%+ by HPLC, customizable.
Q: Which grades are available?
Food grade, cosmetic grade and feed grade.
Q: Do you provide COA?
Yes, per-batch COA with assay, heavy metals and microbiology.
Q: Is it suitable for cosmetics?
Yes, cosmetic grade with moisturizing/repairing properties.
Q: What is the MOQ?
25kg/drum; samples available for evaluation.
Inquiry & Cooperation
As a professional amino acid manufacturer with 20 years of export experience, we supply high-quality L-Tryptophan at competitive bulk prices. Contact our sales team for spec sheets, COA and samples.
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