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.
1. Basic Information
Name: L-carnitine
Alias: (R)-3-hydroxy-4-(trimethylammonio)butanoate
CAS No.: 541-15-1
Molecular Formula: C7H15NO3
Letter-number format molecular formula: C7H15N1O3
Molecular Weight: 161.20
2. Physical and Chemical Properties
Physical Properties
- Appearance: White crystalline powder
- Odor: Odorless, slight sour taste
- Solubility: Freely soluble in water, ethanol; slightly soluble in acetone; insoluble in ether, benzene
- Melting Point: 197–199 °C (decomposes)
- Hygroscopicity: Moderately hygroscopic, easy to absorb moisture and agglomerate under high humidity
- Aqueous characteristic: Zwitterionic compound, neutral aqueous solution
Chemical Properties
- Molecular Structure: Natural chiral quaternary ammonium zwitterion, contains hydroxyl group and carboxylate group
- Optical activity: Only L-type has physiological activity; D-carnitine is inactive and antagonistic
- Acid-base stability: Stable under wide pH range (weak acid ~ weak alkali), no easy hydrolysis
- Physiological function: Transports fatty acids into mitochondria for energy metabolism
- Thermal stability: Stable below 180 °C; high temperature decomposes to release trimethylamine odor
- Photostability: Slightly sensitive to strong UV light; long-term illumination causes slight discoloration
- Compatibility: Compatible with most food, feed, cosmetic and pharmaceutical water-soluble raw materials
3. Main Application Fields
1. Health Food Raw Material (Core Application)
- Weight management nutritional additive, accelerates fat burning and energy release
- Sports nutrition supplement, relieves exercise fatigue, improves endurance
2. Feed Additive
Livestock, poultry and aquaculture feed additive, improves meat quality, reduces fat deposition, enhances growth efficiency
3. Pharmaceutical API & Excipient
- Raw material for oral medicines treating carnitine deficiency, myocardial energy insufficiency
- Stabilizer and taste masking agent for oral solid preparations
4. Cosmetic Raw Material
Skin care functional additive, promotes subcutaneous fat metabolism, improves rough skin
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 541-15-1 |
| Molecular Formula | C7H15N1O3 |
| Appearance | White crystalline powder |
| Assay | Food/Pharma Grade ≥99.0% |
| Water Content (KF) | ≤1.00% |
| Optical Rotation | -29° ~ -32° |
| Residue on Ignition | ≤0.10% |
| Heavy Metals (Pb) | ≤10 ppm |
| Arsenic (As) | ≤1 ppm |
| Packaging | 25kg PE lined woven bag / fiber drum, nitrogen-filled aluminum foil small package |
| Storage Condition | Hermetic cool dry warehouse below 25 °C; moisture-proof, isolated from strong oxidants |
| Transportation Requirement | Non-dangerous goods, moisture-proof sealed packaging |
| Shelf Life | 36 months under intact sealed packaging |
Safety Warning
Low-toxic nutritional raw material. Dust inhalation mildly irritates respiratory tract and eyes; excessive oral intake may cause mild diarrhea, stomach upset. Wear dust mask and protective gloves during operation. Seal tightly to avoid deliquescence. Waste residues can be treated as general biodegradable organic waste.
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