Product Name: | alpha lipoic acid |
Molecular Formula | C8H14O2S2 |
CAS NO.: | 1077-28-7 |
Specification: | 99% |
Appearance: | Yellow crystal powder |
Test method | HPLC |
α- Lipoic Acid is a vital ingredient that functions as an antioxidant and helps the body produce energy. With its strength in fighting free radicals from entering your cells, α-lipoic acid can protect you against many diseases by preventing damage done on the cellular level.
Alpha-lipoic acid (ALA), a naturally occurring dithiol compound, is a powerful antioxidant that helps cells convert glucose into energy, fights skin inflammation, and stabilizes blood sugar, among other things.
Alpha-lipoic acid is mainly used in the health products industry, in the form of tablets and capsules, and can be mixed with other antioxidants such as vitamin C and E.
Product Name: | alpha lipoic acid |
Molecular Formula | C8H14O2S2 |
CAS NO.: | 1077-28-7 |
Specification: | 99% |
Appearance: | Yellow crystal powder |
Test method | HPLC |
α- Lipoic Acid is a vital ingredient that functions as an antioxidant and helps the body produce energy. With its strength in fighting free radicals from entering your cells, α-lipoic acid can protect you against many diseases by preventing damage done on the cellular level.
Alpha-lipoic acid (ALA), a naturally occurring dithiol compound, is a powerful antioxidant that helps cells convert glucose into energy, fights skin inflammation, and stabilizes blood sugar, among other things.
Alpha-lipoic acid is mainly used in the health products industry, in the form of tablets and capsules, and can be mixed with other antioxidants such as vitamin C and E.
ITEM | METHOD | SPECIFICATION | RESULT |
Appearance | Organoleptic | Slightly yellow crystal powder | Conforms |
Identification | HPLC | Meets the requirements | Conforms |
Physical & Chemical Characteristics | |||
Melting Point | USP | 60.0-62.0℃ | 61.5℃ |
Specific rotation | USP | -1.0°~+1.0° | +0.06° |
Loss on Drying | USP | ≤0.2% | 0.05% |
Residue on Ignition | USP | ≤0.1% | 0.04% |
Bulk Density | USP | / | 0.38g/ml |
Impurity | |||
Single Impurity | HPLC | ≤0.1% | 0.07% |
Total Impurities | HPLC | ≤2.0% | 0.11% |
Limit of polymer content | TLC | Conforms | Conforms |
Residual Solvent | |||
Cyclohexane | GC | ≤3880ppm | 1080ppm |
Ethyl Acetate | GC | ≤5000ppm | 61ppm |
Heavy metals | USP | ≤10.0ppm | Conforms |
Lead(Pb) | USP | ≤3.0ppm | Conforms |
Cadmium(Cd) | USP | ≤1.0ppm | Conforms |
Mercury(Hg) | USP | ≤0.1ppm | Conforms |
Microbiological Tests | |||
Total Plate Count | USP | ≤1000cfu/g | Conforms |
Yeast & Mold | USP | ≤100cfu/g | Conforms |
E.Coli. | USP | Negative/g | Negative |
Salmonella | USP | Negative/g | Negative |
Staphylococcus | USP | Negative/g | Negative |
Assay | HPLC | 99.0%~101.0% | 99.6% |
Conclusion: | Conform to USP 43 standard. |
ITEM | METHOD | SPECIFICATION | RESULT |
Appearance | Organoleptic | Slightly yellow crystal powder | Conforms |
Identification | HPLC | Meets the requirements | Conforms |
Physical & Chemical Characteristics | |||
Melting Point | USP | 60.0-62.0℃ | 61.5℃ |
Specific rotation | USP | -1.0°~+1.0° | +0.06° |
Loss on Drying | USP | ≤0.2% | 0.05% |
Residue on Ignition | USP | ≤0.1% | 0.04% |
Bulk Density | USP | / | 0.38g/ml |
Impurity | |||
Single Impurity | HPLC | ≤0.1% | 0.07% |
Total Impurities | HPLC | ≤2.0% | 0.11% |
Limit of polymer content | TLC | Conforms | Conforms |
Residual Solvent | |||
Cyclohexane | GC | ≤3880ppm | 1080ppm |
Ethyl Acetate | GC | ≤5000ppm | 61ppm |
Heavy metals | USP | ≤10.0ppm | Conforms |
Lead(Pb) | USP | ≤3.0ppm | Conforms |
Cadmium(Cd) | USP | ≤1.0ppm | Conforms |
Mercury(Hg) | USP | ≤0.1ppm | Conforms |
Microbiological Tests | |||
Total Plate Count | USP | ≤1000cfu/g | Conforms |
Yeast & Mold | USP | ≤100cfu/g | Conforms |
E.Coli. | USP | Negative/g | Negative |
Salmonella | USP | Negative/g | Negative |
Staphylococcus | USP | Negative/g | Negative |
Assay | HPLC | 99.0%~101.0% | 99.6% |
Conclusion: | Conform to USP 43 standard. |