CAS No. 461-05-2

Batch: Purity:99.83
DL-Carnitine HCl Chemical Structure
Chemical Structure
Check the DL-Carnitine HCl product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 461-05-2
Molecular Formula

C7H15NO3.HCl

Molecular Weight (MW) 197.66
SMILES C[N+](C)(C)CC(CC(=O)O)O.[Cl-]

Biological Activity

DL-Carnitine HCl is a quaternary ammonium compound synthesized from lysine and methionine. In living cells, it facilitates the essential transport of fatty acids from the cytosol across the mitochondrial membrane into the matrix for fatty acid oxidation and cellular energy production. While its biologically active L-carnitine stereoisomer mediates these metabolic processes, the D-carnitine enantiomer is biologically inactive in fatty acid transport. [1][2]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 40 mg/mL (202.36 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 40 mg/mL
Ethanol Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
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Reference

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Note: Technical data last updated: Sep 1, 2026.