R-Alpha-Lipoic Acid Sodium Salt
(R)-1,2-Dithiolane-3-pentanoic acid sodium salt, Na-R-ALA, R(+)-Alpha Lipoic Acid SodiuM, Sodium (R)-lipoate
- CAS
- 176110-81-9
- Sectors
- Nutraceuticals & Supplements, Food & Nutrition
R-Alpha-Lipoic Acid Sodium Salt (CAS 176110-81-9) is the sodium salt form of the naturally occurring R-enantiomer of alpha-lipoic acid, a vitamin-like organosulfur compound whose sodium form is more water-soluble than the free acid, and it is used as a nutraceutical ingredient in supplements and functional foods. It has the molecular formula C₈H₁₃NaO₂S₂ and a molecular weight of 228.31 g/mol. The sodium salt form offers improved water solubility compared to the free acid, making it suitable for aqueous formulations.
Supplied as a food-grade material, it is used as a nutraceutical ingredient in supplement and functional food manufacturing. As the biologically active enantiomer, R-ALA sodium salt is the preferred form for applications requiring enhanced bioavailability and formulation stability in water-based systems.
Typical Properties
| Molecular formula | C8H13NaO2S2 |
|---|---|
| Molecular weight | 228.307 g/mol |
| Grades available | Food Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
R-Alpha-Lipoic Acid Sodium Salt
Applications
- Nutraceuticals & Supplements: R-enantiomer in capsules, tablets, powder formulations
- Pharmaceuticals: pure R-form for oral and injectable preparations
- Food & Nutrition: functional foods and fortified beverages needing aqueous solubility
- Cosmetics: water-soluble antioxidant in topical formulations
- Animal Feed: nutraceutical additive in premium pet nutrition products
Safety & Risks
Not classified as hazardous under GHS. Standard laboratory PPE recommended. Store in a cool, dry location away from light and moisture. No major handling risks identified under normal conditions.
Packaging
Supplied in 25 kg drums or cartons; 1–5 kg small-lot packaging available. Store cool, dry, and away from light.