Buy Food Grade L-Tryptophan Powder 99% CAS 73-22-3 for Dietary Supplement Manufacturers, Supplier
Product Description
L-Tryptophan (CAS No. 73-22-3) is an essential aromatic amino acid that cannot be synthesized by the human body and must be obtained from external sources. It is uniquely distinguished as the only amino acid containing an indole ring structure.
It functions as a core biological precursor for the synthesis of serotonin, melatonin, and niacin (Vitamin B3). Furthermore, it participates extensively in protein synthesis, complements nutritional deficiencies in grain and dairy profiles, and substantially enhances overall daily nutritional support.
| Product Name | CAS No. |
|---|---|
| L-Cysteine | 52-90-4 |
| N-Acetyl-L-Cysteine | 616-91-1 |
| L-Cysteine Hydrochloride Monohydrate | 7048-04-6 |
| L-Cysteine Hydrochloride Anhydrous | 52-89-1 |
| S-Carboxymethyl-L-Cysteine | 638-23-3 |
| Item | Specifications | Results |
|---|---|---|
| Appearance | White crystals or crystalline powder | White crystals or crystalline powder |
| Assay (%) | 98.5 – 101.5 | 99.51 |
| pH Value | 5.5 – 7.0 | 5.83 |
| Specific Optical Rotation | -29.4° – -32.8° | -30.8° |
| Loss on Drying (%) | ≤ 0.30 | 0.21 |
| Residue on Ignition (%) | ≤ 0.10 | 0.05 |
| Chloride (as Cl) (%) | ≤ 0.05 | < 0.05 |
| Sulphate (as SO4) (%) | ≤ 0.03 | < 0.03 |
| Iron (as Fe) (%) | ≤ 0.003 | < 0.003 |
| Heavy Metals (as Pb) (%) | ≤ 0.0015 | < 0.0015 |
| Conclusion: This product conforms to the requirements of the USP32 grade standard. | ||
Dietary Supplements:
Widely utilized in sleep-aid capsules and mood-balancing formulations. Frequently combined with Magnesium L-Threonate and Magnesium Glycinate to create synergistic calming complex formulas.
Fortified Functional Foods:
Added directly to infant formulas and whole-grain meal replacement powders to enrich and balance daily amino acid intake profiles.
| Weight | Packaging Method |
|---|---|
| 1 kg | Double plastic bag inner lining + Aluminum foil bag, outer carton box |
| 10 kg, 25 kg or more | Fiber drums or carton boxes with 2 layers of inner plastic bags |
| Weight | Delivery Method | Delivery Time | Destination |
|---|---|---|---|
| 1 kg – 25 kg | EMS, DHL, UPS, FedEx | 3 – 7 Days | Door to Door |
| 25 kg – 100 kg | DHL, FedEx, Air Freight | 3 – 7 Days | Door to Door / Airport Delivery |
| > 100 kg | Air Cargo | 3 – 7 Days | Airport to Airport |
| Sea Freight | 10 – 35 Days | Seaport to Seaport |
Our primary specification features a purity of ≥99% (tested by HPLC). We supply food-grade and feed-grade materials, with custom packaging options available upon request.
L-Tryptophan serves as an upstream essential amino acid precursor that metabolizes into 5-HTP naturally in the body. 5-HTP is a direct intermediate metabolite. L-Tryptophan is more widely approved and applied across broad food and feed product formulations.
It is widely incorporated into dietary supplements targeting mood support and sleep regulation, and is heavily used across functional foods, animal feed additives, and active pharmaceutical raw ingredients.
Standard industrial packing is 25kg per fiber drum lined with an internal PE bag. For sample evaluations and trial orders, small packaging configurations such as 1kg aluminum foil bags are available.
With over 20 years of specialized raw material export experience, we guarantee strict batch consistency, provide full documentation sets for seamless customs clearance, and execute end-to-end shipment tracking.
