Product Introduction
| Item | Specification |
| Product Name | Tryptophan (L-Tryptophan) |
| Synonyms | 1H-Indole-3-alanine; Trofan; Tryptacin; (S)-2-Amino-3-(1H-indol-3-yl)propanoic acid |
| CAS Number | 73-22-3 |
| Molecular Formula | C₁₁H₁₂N₂O₂ |
| Molecular Weight | 204.23 g/mol |
| Appearance | White to off-white crystalline powder, odorless, slightly bitter taste, stable chiral crystal form at room temperature |
| Purity (HPLC) | ≥98.0% / ≥99.0% (Food Grade / Pharma Grade / Research Grade, customizable) |
| Specific Rotation | -30.0° ~ -32.5° (c=1, H₂O) |
| pH Value | 5.5–7.0 (10g/L, 20°C) |
| Loss on Drying | ≤ 0.2% |
| Residue on Ignition | ≤ 0.1% |
| Testing Method | HPLC / NMR / Mass Spectrometry / IR Spectrum / Optical Rotation Detection |
| Production Method | Microbial Fermentation & Precision Chiral Purification & Multi-Stage Recrystallization |
| Melting Point | 280–290°C (dec., lit.) |
| Boiling Point | 447.9°C at 760 mmHg |
| Density | 1.362 g/cm³ at 25°C |
| Flash Point | 224.7°C |
| Solubility | Slightly soluble in water, soluble in dilute acid and alkaline solutions, sparingly soluble in ethanol, stable in neutral and weak acidic environments |
| Core Feature | Stable indole heterocyclic chiral structure, essential amino acid activity, core precursor for serotonin and melatonin biosynthesis |
| Package | 10g/100g sealed amber bottle, 1kg/5kg drum; custom packaging available |
| Storage | Store in sealed, cool, dark and dry conditions; avoid high temperature, strong light and humid environment to prevent oxidation and chiral activity degradation |
| Shelf Life | 24 months under standard sealed storage |
Product Description
Our Tryptophan (L-Tryptophan) is a high-purity natural chiral essential amino acid with stable indole heterocyclic structure and complete biological activity, available in food grade, pharmaceutical grade and research premium grade. Tryptophan (CAS 73-22-3) is one of the eight essential amino acids for human and animal growth, belonging to indole-class aromatic amino acids. Different from pyridine-derived compounds such as Pyridoxine, Sulfapyridine and DMAP focused on catalytic or pharmacological inhibition, Tryptophan is professionally positioned in biological metabolic synthesis, neurological regulation research, nutritional fortification and amino acid derivative development. As a professional bulk Tryptophan supplier, we provide low-impurity, high-chiral-purity, batch-stable L-Tryptophan monomers for global biomedical laboratories, pharmaceutical factories, nutritional health product enterprises and fine chemical customization institutions.
Tryptophan holds irreplaceable core value in biochemistry, neurological pharmacology and nutritional industry. As the exclusive biological precursor of serotonin and melatonin in vivo, it participates in human nerve signal transmission, sleep regulation, mood stabilization and immune metabolism. It is widely used in the research of neurological mechanism, depression intervention, sleep disorder regulation and nutritional deficiency improvement. In fine chemical synthesis, its unique indole heterocyclic chiral skeleton provides abundant active modification sites, supporting the structural optimization and derivative synthesis of various indole-based drugs and biological active molecules. Compared with ordinary low-purity fermented Tryptophan with mixed chiral isomers and impurity residues, our high-purity purified product eliminates invalid D-type isomers, fermentation residues and inorganic impurities, ensuring ultra-high chiral purity and stable single-component biological activity, which guarantees accurate and repeatable experimental data and stable industrial application effects.
Manufactured by Shaanxi BAISFU Bio-Engineering Co., Ltd., our premium Tryptophan adopts advanced microbial high-density fermentation technology combined with multi-stage chiral resolution and low-temperature recrystallization purification process. The whole production process strictly controls fermentation strain activity, culture medium proportion and purification gradient, completely removing fermentation by-products, residual proteins, heteroisomers and trace heavy metal impurities. We effectively avoid chiral structure damage and biological activity attenuation caused by traditional high-temperature extraction, fully retaining the natural L-type chiral configuration and complete indole ring activity of Tryptophan. The finished product presents uniform white crystalline powder, no caking, no discoloration, stable physical and chemical properties, fully complying with food fortification grade, pharmaceutical raw material grade and high-precision scientific research grade quality standards.
Every batch of Tryptophan undergoes strict multi-dimensional quality inspection, including HPLC high-precision chiral purity analysis, specific rotation detection, NMR structural verification and mass spectrometry molecular identification. It ensures zero invalid isomer interference, ultra-low trace impurities and consistent batch activity, providing reliable raw material guarantee for neurological biomedical research, amino acid preparation and indole derivative synthesis. The product features stable solubility in dilute acid and weak alkaline systems, excellent biological compatibility and high derivatization potential, fully meeting the strict raw material requirements of pharmaceutical formula development, nutritional product processing and high-standard biochemical experiments.
We maintain sufficient inventory and complete qualification documents for bulk Tryptophan supply. Whether you need standard essential amino acid monomers for metabolic biomedical research, core raw materials for sleep regulation and nutritional fortification products, or chiral intermediates for custom indole heterocyclic derivative synthesis, our high-purity L-Tryptophan is a high-cost-performance and high-value biological fine chemical raw material choice for global buyers.
Functions & Benefits
Core Essential Amino Acid Nutritional Activity (Core Benefit)
Tryptophan is an indispensable essential amino acid for human body protein synthesis and growth metabolism. It effectively supplements amino acid nutritional deficiencies, promotes body development and metabolic balance, and serves as the core raw material for high-end nutritional fortification and amino acid infusion preparations.
Neurotransmitter Biosynthesis Precursor
As the exclusive precursor of serotonin and melatonin synthesis in organisms, Tryptophan participates in nerve signal regulation, mood stabilization and circadian rhythm adjustment. It is a key tool compound for studying neurological metabolism, sleep regulation and emotional disorder mechanisms.
High-Purity Chiral Indole Intermediate
With stable indole heterocyclic chiral skeleton and multiple active functional groups, Tryptophan has excellent structural modification and derivatization performance. It supports custom synthesis of indole-based neurological drugs, biological active peptides and heterocyclic functional derivatives, with high synthetic yield and stable structural activity.
Ultra-Low Impurity & High Biocompatibility
Purified pharmaceutical-grade Tryptophan removes fermentation residues, chiral isomer impurities and heavy metal contamination. It has excellent biological safety and compatibility, no adverse interference on cell experiments and in vivo metabolism tests, ensuring pure and reliable application effects.
Strict Batch Consistency & Industrial Stability
Fermented and recrystallized Tryptophan eliminates strain and process quality fluctuations. The product has stable chiral purity, uniform crystal form and consistent biological activity, suitable for long-term scientific research projects and large-scale continuous industrial production.
Excellent Formula Compatibility
Tryptophan has stable activity in conventional nutritional and pharmaceutical formula systems, good compatibility with vitamins and amino acid components. It is easy to compound and process, perfectly adapting to nutritional supplement preparation and pharmaceutical formula debugging scenarios.
Applications
Biomedical & Metabolic Biochemistry Research
Used as a standard high-purity essential amino acid monomer for studying protein metabolism, neurotransmitter synthesis, sleep regulation and immune metabolic mechanisms. Widely applied in university biochemical laboratories, neurological research institutions and pharmacological testing centers.
Nutritional Fortification & Health Product Industry
Served as the core raw material for amino acid nutritional supplements, sleep conditioning products and nutritional fortification formulations, used to improve tryptophan deficiency, assist mood regulation and optimize sleep quality, meeting food-grade safety standards.
Pharmaceutical Preparation & Medical Raw Materials
Applied in the production of amino acid infusion liquids, neurological auxiliary drugs and vitamin compound preparations. It can be combined with Vitamin B6 to assist in improving depression and preventing pellagra, widely used in clinical auxiliary treatment formulations.
Indole Heterocyclic Derivative Custom Synthesis
As a key chiral indole skeleton intermediate, it is used for structural modification and functional derivatization of indole-based active molecules, supporting the R&D of new neurological drugs, biological peptides and fine chemical functional products.
Laboratory Scientific Research & Formula Debugging
Provided as standard high-purity Tryptophan monomer for chiral activity verification, metabolic experiment debugging and custom biochemical research, supporting scientific research innovation and nutritional pharmaceutical product iteration.
FAQ
Q1: What is Tryptophan mainly used for?
A: Tryptophan is an essential indole-class amino acid. It is mainly used for biomedical metabolic and neurological research, nutritional fortification and health product preparation, pharmaceutical amino acid formulation production and indole heterocyclic derivative synthesis, with unique neuroregulatory biological activity.
Q2: What is the core biological function of Tryptophan?
A: Tryptophan is the exclusive biological precursor of serotonin and melatonin. It participates in human nerve signal transmission, mood stabilization and sleep rhythm regulation, while being a key raw material for human protein synthesis and metabolic balance maintenance, with dual nutritional and pharmacological research value.
Q3: What are the core advantages of our Tryptophan?
A: Our Tryptophan adopts microbial fermentation + multi-stage chiral purification technology, featuring ultra-high L-type chiral purity, zero invalid isomer interference, ultra-low fermentation residues and stable batch biological activity. It ensures high accuracy of biochemical experiments and high yield of derivative synthesis, with outstanding safety and stability advantages.
Q4: How to store Tryptophan correctly?
A: Tryptophan is sensitive to strong light, high temperature and humid environment, prone to oxidation discoloration and chiral activity attenuation. It needs to be stored in sealed, cool, dry and dark conditions. Standard sealed storage ensures 24 months of stable shelf life and biological activity.
Q5: What is the appearance of high-purity Tryptophan?
A: High-purity Tryptophan is uniform white to off-white crystalline powder at room temperature, odorless with slight bitter taste, stable crystal state, no caking, no discoloration and no visible impurity precipitation.
Q6: Can I get free Tryptophan samples for testing?
A: Yes, we provide free Tryptophan samples for biochemical metabolism experiments, nutritional formula debugging and indole derivative synthesis tests. Bulk orders support customized purity and packaging to meet industrial production and scientific research needs.
