Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
L-α-Alanine
1. Basic Product Information
Product Name: L-α-Alanine
CAS Number: 56-41-7
Molecular Formula: C3H7NO2
Molecular Weight: 89.09
Synonyms: L-Alanine, (S)-2-Aminopropanoic acid, L-2-Aminopropionic acid
Product Category: Essential biochemical raw material, food nutritional additive, pharmaceutical excipient, cell culture medium reagent, chiral synthesis auxiliary
2. Physical and Chemical Properties
Physical Indicators
- Appearance: Colorless transparent crystal or white crystalline powder
- Odor: Odorless, mild sweet taste
- Solubility: Freely soluble in water; slightly soluble in ethanol; insoluble in acetone, ether, benzene and aliphatic hydrocarbons
- Melting Point: 314–316 °C (decomposes)
- Specific Rotation [α]D2?: +13.5° ~ +15.0° (c=10, H?O)
- Density (20 °C): 1.43 g/cm3
- Hygroscopicity: Non-hygroscopic under sealed dry storage
- Aqueous Stability: Highly stable in neutral, weakly acidic and weakly alkaline aqueous solutions; forms amino acid salts with metal ions without room-temperature hydrolysis
Chemical Characteristics
- Molecular Structure: Simplest chiral α-amino acid, consisting of methyl, amino and carboxyl groups on chiral carbon
- Core Functional Mechanism: Key intermediate of human glucose-alanine cycle; widely used as chiral resolution auxiliary, protein building block and flavor stabilizer
- Photostability: Stable under normal light storage; no obvious discoloration after long-term sealed preservation
- Thermal Stability: Stable below 280 °C; decomposes above melting point to release irritating nitrogen-containing volatile fumes
- Chemical Compatibility: Compatible with most inorganic salts, polar protic solvents and pharmaceutical excipients; incompatible with concentrated strong alkalis and strong oxidants
3. Main Application Fields
- Core Application: Food & Health Product Additive
Nutritional fortifier for beverages, dairy, compound amino acid oral liquids and sports nutrition supplements; flavor modifier to soften sour taste - Cell & Biochemical Culture Reagent
Basic component of serum-free cell culture medium, microbial fermentation culture medium for antibody and protein expression - Pharmaceutical Raw Material & Excipient
Raw material for amino acid injection formulations, chelating stabilizer for oral medicines and chiral splitting auxiliary for chiral drug intermediates - Cosmetic Raw Material
Moisturizing and skin conditioning additive in skincare formulations, improves keratin metabolism - Industrial Chiral Synthetic Reagent
Low-cost chiral ligand and resolving agent for separating racemic amines and metal chiral complexes
4. Platform Category & Product Group Guidance
1) Domestic B2B Platform Category
Recommended Path: Organic Intermediates / Biochemical Reagents
Reason: Universal small chiral amino acid applied in food, biotech, pharmacy and fine chemical industries
2) English Product Group Dropdown Options
Recommended Selection: Basic Organic Chemicals
Do NOT solely classify as pharmaceutical chemicals; it is food-grade general biochemical raw material
3. Standard Foreign Trade Packaging Specification
1kg aluminum foil vacuum bag for lab test batches; 25kg double PE-lined kraft woven bag or fiber drum for mass industrial orders
5. Quality Specification Table
| Test Item | Standard Requirement |
| CAS Number | 56-41-7 |
| Molecular Formula | C3H7NO2 |
| Appearance | Uniform white crystal powder without colored impurities |
| Titration Assay | Food Grade ≥99.5%, Biochemical Grade ≥99.8% |
| Specific Rotation | +13.5° ~ +15.0° |
| Water Content (KF Method) | ≤0.10% |
| Heavy Metals (Pb) | ≤10 ppm |
| Arsenic (As) | ≤2 ppm |
| pH (10% aqueous solution) | 5.5–7.0 |
| Standard Storage Package | Airtight sealed PE lined bag, dry warehouse storage |
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