L-Carnitine - Front - MiPeptidos
Fat Dissolvers / Body Composition

L-Carnitine

CAS: 541-15-1

L-Carnitine is a research peptide in the fat dissolvers / body composition category. L-Carnitine is an amino acid derivative essential for the transport of long-chain fatty acids from the cytoplasm into the mitochondrial matrix via the carnitine shuttle system (CPT-I and CPT-II). MiPeptidos offers L-Carnitine in 4 sizes with 99.7% verified purity and full analytical documentation.

Starting at
$11.95/vial
In Stock
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≥99% Purity
COA Included
Third-Party Tested
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CoA Included
HPLC Verified
GMP Compliant
Third-Party Tested
Same-Day Shipping
Batch Tracked

How L-Carnitine Works

L-Carnitine is an amino acid derivative essential for the transport of long-chain fatty acids from the cytoplasm into the mitochondrial matrix via the carnitine shuttle system (CPT-I and CPT-II). Inside mitochondria, fatty acids undergo beta-oxidation for energy production. L-Carnitine also modulates the acyl-CoA/CoA ratio, buffers excess acyl groups, and has antioxidant properties protecting mitochondrial membranes from lipid peroxidation. It enhances fatty acid utilization as an energy substrate, particularly during exercise and caloric restriction.

Research Applications

1
Fat oxidation and weight management
2
Exercise performance and recovery
3
Cardiovascular health and cardiac energy metabolism
4
Male fertility and sperm motility
5
Neurodegeneration and brain energy metabolism
View Published Research on PubMed →

Pricing

SizePer Vial10-Pack
2mg
$11.95$86.95
400mg
$16.95$123.95
600mg
$19.95$145.95
1200mgBest Value
$25.95$188.95

Prices shown per vial from 10-pack. Volume discounts available for 50+ vials — contact us.

HPLC Purity Analysis

High-Performance Liquid Chromatography
99.7%purity
mAURetention Time (min)0250500750100005101520253099.7%
Method: RP-HPLC C18 ColumnDetection: UV 220nmMobile Phase: Acetonitrile/Water + 0.1% TFA

Certificate of Analysis

MiPeptidos
L-Carnitine
PASSES ALL SPECIFICATIONS
Batch NumberHR-LCRN-2600315
Date of AnalysisJanuary 7, 2026
Purity (HPLC)99.7%
AppearanceClear, colorless sterile solution
SolubilityN/A — ready-to-use solution
Molecular Weight (MS)161.20 Da — Confirmed
Endotoxin (LAL)<0.1 EU/mg
Sterility (USP <71>)Passes USP <71>

This COA is a representative sample. A batch-specific Certificate of Analysis with full HPLC chromatograms and mass spectrometry data is included with every MiPeptidos order.

Reconstitution Calculator

Add this much bacteriostatic water:
2.0 mL
2 mg L-Carnitine + 2.0 mL BAC water = 1 mg/mL

Inject bacteriostatic water slowly along the vial wall. Gently swirl until dissolved — never shake. Store reconstituted solution at 2-8°C and use within 30 days.

Download Product Brochure

Get our detailed L-Carnitine product brochure with specifications, research applications, HPLC analysis data, and reconstitution guide. Available in English and Spanish.

Customer Reviews

5.0/5from 1 review
Verified
Mike Sullivan·Tampa, FL

L-Carnitine from MiPeptidos is pharmaceutical-grade for our mitochondrial fatty acid transport research. The quaternary ammonium compound facilitates long-chain fatty acid translocation in our isolated mitochondria assay...

Nov 12, 2025
View All Reviews →

Frequently Asked Questions

L-Carnitine (CAS: 541-15-1) is a research compound, with a molecular weight of 161.20 Da in the Fat Dissolvers / Body Composition category. L-Carnitine is an amino acid derivative essential for the transport of long-chain fatty acids from the cytoplasm into the mitochondrial matrix via the carnitine shuttle system (CPT-I and CPT-II). Inside mitochondria, fatty acids undergo beta-oxidation for energy production. Researchers commonly investigate L-Carnitine for Fat oxidation and weight management, Exercise performance and recovery, Cardiovascular health and cardiac energy metabolism. Every vial from MiPeptidos includes batch-specific analytical documentation.
L-Carnitine is available in 4 sizes (2mg, 400mg, 600mg, 1200mg), so reconstitution volume depends on which vial you have. For the 2mg size, add 1mL of bacteriostatic water; for the 1200mg size, use 2-5mL. Always let the vial warm to room temperature first, inject the water slowly along the vial wall, and swirl gently — never shake. Store reconstituted L-Carnitine at 2-8°C and use within 30 days. MiPeptidos carries bacteriostatic water in 3mL and 10mL vials.
L-Carnitine (161 Da) and AICAR (258 Da) both impact energy metabolism, but through different mechanisms. L-Carnitine shuttles long-chain fatty acids across the inner mitochondrial membrane for beta-oxidation — it is a transport molecule, not a signaling molecule. AICAR activates AMP kinase to simulate exercise-induced metabolic changes. L-Carnitine deficiency directly impairs fat oxidation capacity. MiPeptidos offers L-Carnitine in 4 sizes from 200mg to 1000mg, including a large 5mL vial.
Store lyophilized L-Carnitine at -20°C for maximum long-term stability — properly stored, it remains potent for 24+ months. Once reconstituted with bacteriostatic water, keep it refrigerated at 2-8°C and use within 30 days. In research applications, L-Carnitine has a reported half-life of ~17 hours (oral); IV clearance is faster, which informs dosing frequency and protocol design. Avoid repeated freeze-thaw cycles and protect from direct light. MiPeptidos ships every order with cold-chain packaging to maintain integrity during transit.
Every L-Carnitine order from MiPeptidos includes a batch-specific Certificate of Analysis. Our current batch (HR-LCRN-2600315, tested January 7, 2026) shows 99.7% purity by HPLC, mass spectrometry confirmation at 161.20 Da, endotoxin levels below 0.1 EU/mg, and passing sterility per USP <71>. This level of documentation ensures you can verify compound identity and purity before beginning your research. MiPeptidos also offers bulk pricing on orders of 50+ vials — contact info@mipeptidos.com.

Specifications

Purity
≥99%
Form
Lyophilized Powder
CAS Number
541-15-1
Mol. Weight
161.20 Da
Formula
C7H15NO3
Half-Life
~17 hours (oral); IV clearance is faster
Storage
Store at -20°C. Reconstituted: 2–8°C for up to 30 days.
Sizes
2mg, 400mg, 600mg, 1200mg

Sequence

N/A (not a peptide; quaternary ammonium compound/amino acid derivative)

Research Use Only. This product is intended for laboratory research purposes only. Not for human consumption. Handle with appropriate safety precautions.

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