Oops! It appears that you have disabled your Javascript. In order for you to see this page as it is meant to appear, we ask that you please re-enable your Javascript!

Alpha Lipoic Acid USP


(±)-1,2-dithiolane-3-pentanoic acid, 6,8-dithiooctanoic acid, dl-α-lipoic acid, dl-6,8-thioctic acid, lip(s2)

Technical Data

CAS Number: 1077-28-7
Molecular Formula: C8H14O2S2
Molecular Weight: 206.33
Beilstein Registry Number: 81853
EC Number: 214-071-2

FabriChem Specifications

AppearanceYellow crystalline powder
B. Infrared Absorption

Melting Point60 – 62°C
Solubility (1N NaOH)Clear & Pale Yellow
Residue on Ignition0.10% Max.
Heavy Metals10 ppm Max.
Chloride0.07% Max.
Loss on Drying
(Vacuum 40°C 3hr)
0.20% Max.
Assay (by HPLC, USP Method)99.0% - 101.0%
Specific Optical Rotation1° to +1°
Chromatographic Purity (Test 1)
A. Individual Impurity
B. Total Impurities

A. 0.1% Max.
B. 2.0% Max.
Chromatographic Purity (Test 2)2.0% Max.
Residual Solvents (by GC):
Toluene30 ppm Max.
Ethyl Acetate0.20% Max.
Cyclohexane0.20% Max.
Total Aerobic Count1,000 CFU/g Max.
Yeast & Mold100 CFU/g Max.
E. ColiNot Detectable
SalmonellaNot Detectable

Molecular Structure



Alpha-Lipoic Acid USP (α-Lipoic Acid) is an anti-oxidant, naturally present in both plants and animals, which plays a vital role in cellular energy production. Unlike other anti-oxidants Alpha Lipoic Acid has the unique ability to function in both the water and lipid compartments of the body.

Alpha Lipoic Acid helps to scavenge free radicals and may help to regenerate other anti-oxidants including Vitamin C, Vitamin E, Glutathione and Coenzyme Q10 (CoQ10).

Alpha Lipoic Acid may support chelation (binding) of heavy metals present in the body to help prevent the generation of free radicals and metal induced oxidative damage.


• Meets USP Requirements
• Kosher & Halal Certified
• Non-GMO & Vegetarian Compliant