Description

Lipoic acid is a B-group vitamin with strong antioxidant, anti-aging agent and neurotrophic effects. It is widely used in pharmaceutical, health care and cosmetics industries and is a very popular product in recent years. We can provide food grade, medical grade and D-lipoic acid products. D-lipoic acid is a high-end lipoic acid product, which is mainly used to produce high-end lipoic acid preparations, health products, etc. Its efficacy is twice that of the same content of suspended lipoic acid products.
Main quality standards of food-grade lipoic acid。Content:According to the dry product, the content of C8H*4O2S2 should be *9.0%~**1.0%.;Related substances:max individual impurity: ≤ 0.1%, total impurities:≤ 2.0%,Polymeric Lipoic acid:≤1.0%;Loss on drying:≤0.2%;Ignition residue:≤0.1%;Residual solvent:Cyclohexane ≤ 0.**8%, ethylacetate ≤0.5%, Toluence ≤ 0.**9%, 
Main quality standards of pharmaceutical grade lipoic acid。content:According to the dry product, the content of C8H*4O2S2 should be *9.0%~**1.0%;Related substances:Impurity A ≤ 0.1%, other maximum single impurities ≤ 0.1%, total impurities ≤ 0.3%;Impurity B:The spot of impurity B in the test solution shall not be deeper than that of impurity B in the reference solution;Loss on drying:≤0.2%;Ignition residue:≤0.1%;heavy metal:The content of heavy metals shall not exceed *0 parts per million;Residual solvent:Cyclohexane ≤ ***0ppm, ethylacetate ≤ ***0ppm, ethanol ≤ ***0ppm, dichloromethane ≤ **0ppm
Dextral rotation lipoic acid.content：≥*8%，ee%:≥*9%。