（Functions of D-Tryptophan）

1. Pharmaceutical Industry

1. Chiral pharmaceutical intermediate

   It is a key chiral building block for the synthesis of anti-tumor drugs, antibiotics, psychiatric medicines and polypeptide drugs. Widely used in asymmetric organic synthesis to stabilize stereochemical structure and reduce side effects.
2. Immune regulation and anti-tumor

   Enhances immunity, inhibits tumor cell proliferation and induces cancer cell apoptosis; applied in anti-tumor drug research and adjuvant conditioning.
3. Anti-inflammatory and analgesic

   Inhibits inflammatory factors, possesses anti-inflammatory, nerve soothing and analgesic effects, used in the development of inflammatory and neurological preparations.
4. Ophthalmic application

   Used as raw material for eye drops and sustained-release preparations to prolong drug efficacy and improve bioavailability.

2. Biochemical Research

• Used as biochemical reagent and microbial culture medium additive to regulate strain growth and metabolism.

• Applied in amino acid metabolism, chiral resolution, enzyme engineering and protein structure research.

3. Food & Health Supplements

• Functional food additive with antioxidant and anti-fatigue properties.

• Acts as metabolic precursor of melatonin and serotonin, helping soothe mood and improve sleep quality.

4. Feed Industry

5. Cosmetics & Daily Chemicals