Description

L-Tryptophan is an essential amino acid crucial for protein synthesis and serves as a key metabolic precursor for serotonin, melatonin, and niacin. Its role in supporting neurological function, mood regulation, and sleep-wake cycles makes it a vital ingredient for the pharmaceutical and nutraceutical industries. This high-purity compound is primarily sought by manufacturers in the dietary supplement, animal nutrition, and pharmaceutical sectors for its bioactive properties.

Application

• Dietary Supplements & Nutraceuticals: Used as a key ingredient in formulations aimed at supporting mood balance, sleep quality, and cognitive health.
• Pharmaceutical Intermediates: Serves as a critical building block in the synthesis of various active pharmaceutical ingredients (APIs) and psychotropic drugs.
• Animal Feed Additives: Incorporated into feed for swine, poultry, and aquaculture to optimize growth performance, improve feed efficiency, and support overall animal well-being.
• Food & Beverage Fortification: Utilized to enhance the nutritional profile of functional foods, medical nutrition products, and protein blends.
• Microbiological & Cell Culture Media: Acts as an essential nutrient component in fermentation processes and cell culture systems for biotechnological production.
• Cosmetic & Personal Care: Found in advanced skincare formulations for its potential role in supporting skin health and repair mechanisms.

Basic Information

Product Name	L-Tryptophan
CAS No.	80206-30-0
Molecular Formula	C11H12N2O2
Molecular Weight	204.23 g/mol
Synonyms	(S)-Tryptophan; Tryptophan; L-2-Amino-3-(3-indolyl)propionic acid; L-α-Amino-3-indolepropionic acid; L-β-3-Indolylalanine; Trp; W; 1H-Indole-3-alanine; (S)-α-Amino-1H-indole-3-propanoic acid
EINECS	279-391-6

Quality Control

Our L-Tryptophan is manufactured under strict quality management systems. We offer grades compliant with major pharmacopoeial standards, including USP, EP, and FCC, ensuring suitability for high-value applications. Each batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. Our commitment to GMP principles and rigorous in-process controls guarantees consistent quality and supply chain reliability for our global partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). The product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to slightly yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	98.5% - 101.0%
Specific Rotation	-30.0° to -33.0°
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 1.0%
Chloride	≤ 0.02%
Sulfate	≤ 0.02%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.