What is L-Carnitine?
L-Carnitine (CAS 541-15-1, β-hydroxy-γ-trimethylaminobutyric acid) is a naturally occurring quaternary ammonium compound synthesised from lysine and methionine. L-Carnitine is the obligate carrier for long-chain fatty acids across the inner mitochondrial membrane via the carnitine/acylcarnitine translocase system — enabling mitochondrial β-oxidation. At research concentrations, it modulates acetyl-CoA/CoA ratios, influences glucose oxidation, and participates in peroxisomal fatty acid oxidation. These pre-dosed aqueous vials provide convenient per-vial dosing formats. Research use only.
Research Applications
Mitochondrial β-Oxidation
Carnitine palmitoyltransferase I/II (CPT-I/II) activity, acylcarnitine shuttle, fatty acid flux
Energy Metabolism
Acetyl-CoA/CoA ratio modulation, glucose vs. lipid substrate switching, ketone body production
Cellular Lipid Profiling
Acylcarnitine species profiling by mass spectrometry, free carnitine pools
Mitochondrial Function
Membrane potential (ΔΨm) studies, respiratory chain coupling, oxygen consumption rates
Peroxisomal Oxidation
Very-long-chain fatty acid (VLCFA) processing, peroxisomal carnitine acetyltransferase research
Quick Specs
| Form | Lyophilized powder |
| Purity | ≥99% by HPLC — every batch |
| CAS Number | 541-15-1 |
| Molecular Formula | C₇H₁₅NO₃, MW 161.20 g/mol |
| Peptide Type | Endogenous quaternary ammonium / mitochondrial fatty acid transporter |
| Identity | MS molecular weight confirmed — every batch |
| COA | Janoshik-independent, publicly verifiable |
| Manufacture | In-house Fmoc SPPS — Qingdao, China |
| Storage | −20°C sealed | 2–8°C reconstituted (2–4 weeks) |
| Shelf Life | 24 months (unopened) |
