Overview
L-Carnitine (CAS 541-15-1 ), also marketed under the brand name Carnitor, is a naturally occurring quaternary ammonium compound used across food, pharmaceutical, and personal care manufacturing.
It functions primarily as a bioactive nutrient ingredient, supporting fatty acid metabolism pathways that make it a target active in energy-related formulations for various industries.
In dietary supplements and functional foods, it is incorporated into sports nutrition products, energy drinks, and weight management formulations as a declared active ingredient.
Pharmaceutical manufacturers use it in oral solutions, tablets, and infusion preparations targeting metabolic and cardiovascular indications. It is also added to infant formula and clinical nutrition.
Personal care formulators incorporate it into skin and scalp treatments where it contributes moisturizing and conditioning performance. It is supplied as a white crystalline powder or liquid.
Standard grades include USP , BP , Ph.Eur. , and food-grade ( FCC ), with pharmaceutical grades subject to tighter impurity and optical purity specifications.
L-Carnitine L-Tartrate, a salt form offering improved flow and stability, is also commercially available for solid dosage and supplement applications across global markets.
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Physical Properties
| Melting Point | 196-197 °C |
| Boiling Point | 287.5°C (rough estimate) |
| Density | 0.64 g/cm3 |
| Appearance | White crystalline |
| Color | White |
| Form | Crystals or Crystalline Powder |
| Water Solubility | 2500 g/L (20 ºC) |
| Refractive Index | -32 ° (C=1, H2O) |
| pH | 6.5-8.5 (50g/l, H2O) |
| Log P | -5.48 at 20℃ |
Safety & Handling
Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation Precautionary Statements P264 Wash … thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P321 Specific treatment (see … on this label). P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29239000 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 541-15-1
- EC Number
- 208-768-0
- Mol. Weight
- 161.20
- HS Code
- 29239000
- Category
- Surfactants