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%。
