Molekula
L-Carnitine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · 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
In stock — same-day dispatch
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
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.