lipoic acid
Molecular formula: C8H14O2S2
CAS NO:1077-28-7
project | specifications |
appearance | yellow crystalline powder |
content | 99.0% min |
melting point | 60℃-62℃ |
solubility | meet |
heavy metal | 10ppm max |
loss on drying | 0.2% max |
ignition residue | 0.1% max |
mesh number | 100%by20mesh |
specific rotation | -1.0 - +1.0 |
unit polymer content | 2.0% max |
High performance liquid chromatography related substances | |
6.8-epitrithlooctanolic acid | 0.1% max |
individual impurity | 0.1% max |
total impurities | 0.5% max |
solvent residue | |
cyclohexane | 1000ppm max |
ethyl acetate | 250ppm max |
toluene | 20ppm max |
microbial | |
total bacterial count | 1000cfu/g max |
yeasts and molds | 100cfu/g max |
e. Coli | negative |
of Salmonella | negative |
Staphylococcus metallicus | negative |
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