Molekula
L-Carnitine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
L-Carnitine is a naturally occurring amino acid derivative essential for transporting fatty acids into mitochondria for energy production, widely used in sports nutrition, veterinary care, and metabolic health supplements. It appears as a white to off-white crystalline powder with a slight odor, soluble in water. CAS 541-15-1, molecular formula C7H15NO3, molecular weight 161.20 g/mol. Store between 2–8°C in a dry, sealed container. Signal word: Warning (may cause mild irritation). Molekula supplies L-Carnitine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £124.20 per pack ex VAT · £149.04 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystals or crystalline powder |
| Specific rotation | -29.0°- -32.0° |
| Heavy metals | ≤10ppm |
| Identification | Conforms to reference |
| Total plate count | ≤1000cfu/g |
| pH | 5.5-9.5 |
| Loss on Drying | ≤0.5% |
| Chloride (Cl-) | ≤0.4% |
| Assay | ≥97% <103% |
| Residue on Ignition | ≤0.1% |
| Cadmium (Cd) | ≤1ppm |
| Residual Solvents: Ethanol | ≤5000ppm |
| Lead (Pb) | ≤3ppm |
| Mercury (Hg) | ≤0.1% |
| Arsenic (As) | ≤1ppm |
| Potassium (K) | ≤0.2% |
| Sodium (Na) | ≤0.1% |
| Mould & Yeast | ≤100Cfu/g |
| Residual Solvents: Acetone | ≤1000ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White, crystalline, hygroscopic powder |
| Melting Point | 197 °C (dec) |
| Solubility (other solvents) | Readily soluble in water and hot alcohol. Practically insoluble in acetone, ether and benzene |
| pKa | pKa = 3.8 |
Source: PubChem CID 10917 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 14710358 |
| CAS Number | 541-15-1 |
| IUPAC Name | (3R)-3-hydroxy-4-(trimethylazaniumyl)butanoate |
| EC Number | 208-768-0 |
| Molecular Formula | C7H15NO3 |
| Molecular Weight | 161.20 |
| Exact Mass | 161.1052 |
| SMILES | C[N+](C)(C)C[C@@H](CC(=O)[O-])O |
| InChIKey | PHIQHXFUZVPYII-ZCFIWIBFSA-N |
| InChI | InChI=1S/C7H15NO3/c1-8(2,3)5-6(9)4-7(10)11/h6,9H,4-5H2,1-3H3/t6-/m1/s1 |
| PubChem CID | 10917 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2923900100 |
| Tariff Code | 2923900090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- (-)-Carnitine
- Carnitene
- Carnitolo
- Carnitor
- Karnitin
- Levocarnitina
- Levocarnitine
- Levocarnitinum
- Metina
- vitamin BT
Frequently asked questions
What is L-Carnitine commonly used for?
L-Carnitine is primarily used as a dietary supplement to support energy production, muscle recovery, and fat metabolism, and it’s also employed in veterinary medicine and pharmaceutical formulations.
What is the chemical formula and molecular weight of L-Carnitine?
The chemical formula is **C₇H₁₅NO₃**, and the molecular weight is **161.20 g/mol**.
How should L-Carnitine be stored?
Store L-Carnitine at **2 to 8°C** in a dry, well-ventilated area, away from direct sunlight and incompatible substances.
What grades or purity levels of L-Carnitine does Molekula supply?
Molekula supplies **pharmaceutical-grade (USP/EP/BP compliant) and food-grade L-Carnitine**—contact us for specific purity requirements.
Can Molekula supply L-Carnitine in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., 1kg, 5kg, 25kg drums) for industrial, pharmaceutical, or nutritional applications—inquire for pricing and lead times.
What documentation is provided with an L-Carnitine order?
Each order includes a **Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation** for traceability and compliance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.