L-Tryptophan

Product Introduction

L-Tryptophan is an essential amino acid with the following characteristics:
• Chemical Formula: C₁₁H₁₂N₂O₂
• Molecular Weight: 204.23
• CAS Number: 73-22-3
• EINECS Number: 200-795-6
• Appearance: White or slightly yellow crystalline powder
• Solubility: Slightly soluble in water (60 mg/mL), soluble in hot ethanol, alkaline hydroxide, dilute HCl; insoluble in chloroform and ether
• Stability: Light-sensitive; prone to discoloration under prolonged light; relatively stable when heated with acid in the dark
• pH (aqueous): 5.0–6.5
• Melting Point: 289–290 °C (decomposition)

Application Fields

• Pharmaceutical Field: Precursor to serotonin and melatonin; used in treatments for depression, anxiety, insomnia
• Nutritional Supplement: Component in amino acid injections and formulations for diabetes, neurological disorders, niacin deficiency
• Gastrointestinal Health: Improves GERD, gastritis, duodenal ulcers
• Food Industry: Nutritional enhancer in dairy, meat, baked goods; antioxidant additive
• Feed Field: Animal feed additive to improve growth and immunity
• Other Applications: Biochemical research precursor; cosmetic anti-fatigue ingredient

Packaging Requirements

• Material: Moisture-proof, sealed containers (PE, PP or woven bags)
• Sealing: Prevent moisture absorption and leakage
• Labeling: Product name, formula, CAS, production date, shelf life, instructions
• Common Specs:
– Solid L-Tryptophan: 25 kg/bag (inner PE lining + outer woven bag)
– Small Packaging: 50 g, 100 g, 500 g

Storage and Transportation

Storage:
• Store in dark, dry, cool (≤ 25 °C), well-ventilated place; avoid sunlight and humidity
• Keep sealed; inspect packaging for caking or damage

Transportation:
• Inspect and replace damaged packaging
• Use dedicated vehicles; minimize vibration/impact
• PPE: masks, goggles, gloves