CAS No. 1200-22-2

Batch: Purity:99.78
(+)-α-Lipoic acid Chemical Structure
Chemical Structure
Check the (+)-α-Lipoic acid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 5-[(3R)-dithiolan-3-yl]pentanoate
CAS Number 1200-22-2
Molecular Formula

C8H14O2S2

Molecular Weight (MW) 206.33
SMILES C1CSSC1CCCCC(=O)O
InChIKey AGBQKNBQESQNJD-SSDOTTSWSA-M

Ordering Information

Biological Activity

(+)-α-Lipoic acid (R-(+)-α-Lipoic acid) is an endogenous antioxidant and an essential cofactor for mitochondrial enzyme complexes. It suppresses NF-κB pathway signaling, leading to the inhibition of NF-κB-dependent HIV-1 LTR activation. As a physiological thioctic acid enantiomer, it attenuates oxidative stress, enhances cellular mitochondrial energy metabolism, and exhibits superior antioxidant efficacy compared to its racemic mixture. [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 125 mg/mL (605.82 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
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).
Note: Technical data last updated: Sep 1, 2026.