Five or more for £8 each. Add to basket for discount.
- OP Labs formerly Oxford Peptides.
- 500mg/ml | 5000mg/vial
- Can be stored long term at ambient temperature.
- Sold for research purposes only.
- Contact us for Wholesale Orders.
Download Product Spec here: L-Carnitine Product Spec.pdf
Please note our in-solution products are made to specification so we do not produce a batch level COA.
L-Carnitine – Technical Information
Chemical Name:
L-Carnitine
Synonyms:
(3R)-3-Hydroxy-4-(trimethylazaniumyl)butanoate, Vitamin Bt, Levocarnitine
Chemical Formula:
C7H15NO3
Molecular Weight:
161.20 g/mol
CAS Number:
541-15-1
EC Number:
208-768-0
PubChem CID:
1080
UNII (FDA):
QO60AQV1QZ
IUPAC Name:
(3R)-3-Hydroxy-4-(trimethylazaniumyl)butanoate
Structure Representation:
SMILES:
C[N+](C)(C)CC[C@H](O)C(=O)[O−]
InChI:
1S/C7H15NO3/c1-8(2,3)4-5-6(9)7(10)11/h6,9H,4-5H2,1-3H3/t6-/m1/s1
InChI Key:
NIXOWILDQLNWCW-ZETCQYMHSA-N
Chirality:
L-isomer (3R configuration); optically active
Physical Properties:
- Appearance: White crystalline powder
- Melting Point: 197–212 °C (decomposes)
- Solubility: Highly soluble in water, sparingly soluble in ethanol
- pKa: 3.6 (carboxylic acid), 9.5 (hydroxyl)
- Density: 1.23 g/cm³ (estimated)
Classification:
Quaternary ammonium compound; endogenous betaine involved in fatty acid transport in cellular systems
Form:
Typically used as L-carnitine free base or as hydrochloride or tartrate salts for enhanced stability
Storage Guidelines:
– Store in a dry, cool environment away from direct sunlight
– Keep container tightly closed
– Hygroscopic; protect from moisture
References
- Steiber, A., Kerner, J., & Hoppel, C. L. (2004). “Carnitine: a nutritional, biosynthetic, and functional perspective.” Molecular Aspects of Medicine, 25(5–6), 455–473. https://doi.org/10.1016/j.mam.2004.06.006
- Bremer, J. (1983). “Carnitine – metabolism and functions.” Physiological Reviews, 63(4), 1420–1480. https://doi.org/10.1152/physrev.1983.63.4.1420
- Ferdinandusse, S., et al. (2004). “Clinical and biochemical aspects of mitochondrial fatty acid beta-oxidation disorders.” Journal of Inherited Metabolic Disease, 27(4), 349–362. https://doi.org/10.1023/B:BOLI.0000031081.35408.52
- National Center for Biotechnology Information. PubChem Compound Summary for CID 1080, L-Carnitine. https://pubchem.ncbi.nlm.nih.gov/compound/1080










John OMahony –
Arrived on time. All good.
Joshua Manapat Joshua Manapat –
great as a 1 hour before gym energy boost
Linden Lonsdale –
Same experience as always every order is the same . quality products with fast delivery and great value
Tiffany –
Wulfric W. –
Amazing stuff, cheap and effective.
Simon –
Is really hard to find properly dosed Carnitine at an affordable price. Will be buying again from here, does exactly as it should and is affordable to run for a decent amount of time. Very much appreciated!
Ioan Vidroiu –
D J HAY –
Fantastic price and it’s certainly living up to expectations, highly recommended, will be purchasing these again.
Nichelle C. –
My new fav amino acid.
Andrew Walker –
Rabi –
Good product, brilliant value for money, rapid dispatch. Recommended Company.
Steven D. –
Excellent service and very quick delivery 5*
Sebastian Schreiber –
Very disappointed, previously used difrent l carnitine wchich make me sweat at the gym at dosage of 800mg . Oxford peptide doesn’t work at 5ml 2500mg IM injection at all
chen yu tsang –
Good quality mix, less pip than other brands
Jonathan Lee –
KEVIN C. –
Super fast postage and great products
Callum –
Steven C. –
Excellent service and product
Anonymous –
Works very well.
Joe –
Garry –
Really, really good price
Tom –
Chris P. –
Undecided on this…lots of praise online for it, just not sure I’m feeling any benefits – and a daily needle 🙈
Sean T. –
Fast delivery fantastic product good price will buy again
Andreas Zenonos –
Mate Janos Andrasi –
500 mg/ml, no PIP! Love it
Nichelle C. –
The best L-carnitine on the block. This one is a staple one of my must have aminos
Alex B. –
Perfect
GARRY BLACKSTONE –
Very good pre workout
Anonymous –
So easy to order, extremely quick despatch and delivery. Thank you!
Leon Galbraith –
Raha A. –
Anonymous –
Amazing for fat loss and energy
Toni C. –
works well and fast shipping
Anonymous –
Very quick delivery and very good product
Sylvia –
Leon Galbraith –
Darren E Bell –
Jonathan Williams –
Simon Pygall –
Excellent product…great value
Steven Costa –
Daniel C. –
Love this product and the quality from Oxford peptides is number 1
Catherine –
Quick delivery and great quality product!
James –
Bought this to take before the gym for added fat loss, fingers crossed it will work
Matt –
Steve J. –
Really quick delivery, good prices and has the desired effect. Have bought other items from Oxford peptides and always a good experience.
william –
Great price
Natalia Komarnicka –
Mat –
Really good customer service and products
Anonymous –
Pete Robinson –
Great value, fast delivery
Amr –
Will Smith –
Anonymous –
10/10 definitely will continue to buy from this site! Plus fast deliveries!
Lee P. –
Amazing peptide company
Fred E. –
Never recieved
Michelle S. –
Brilliant product very effective
James B. –
Great service, great comms, quick delivery
Gareth H. –
Jarnail singh –
Excellent