Alpha-lipoic acid: dithiolane fatty acid.
Alpha-lipoic acid testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.
Alpha-lipoic acid: 2D structure drawn from the PubChem record (CID 864).
1077-28-7 (racemic)
C8H14O2S2
206.3 g/mol (monoisotopic 206.04)
dithiolane fatty acid
IUPAC name: 5-(dithiolan-3-yl)pentanoic acid
Identity, purity and quantity are measured by a chromatographic assay, with detection selected for the compound, against a reference standard, $250 per sample with results in 3 to 5 business days. Finished products use the same approach, with sample preparation matched to the product.
$250
Chromatographic purity and mg per unit by the method matched to the compound, identity against a reference standard. 1 unit.
| Add-on test | Price |
|---|---|
| Identity and impurities | |
| FTIR identity | $90 |
| CHNS elemental analysis (carbon, hydrogen, nitrogen, sulfur) | $125 |
| Chiral purity (where a chiral method exists; new methods quoted) | $250 |
| Water, solvents and salt form | |
| Water content by Karl Fischer | $60 |
| Residual solvents | $150 |
| Counterions: chloride, acetate and TFA | $70 |
| Assay | |
| Assay, % w/w (with raw powder purity; $250 together) | +$50 |
| Metals and conformity | |
| Heavy metals: arsenic, cadmium, chromium, mercury and lead | $150 |
| Conformity: purity and quantity on more units from the same lot | $100 per extra unit |
10% off for 10 or more samples.
Need something else? Other tests are available on request.
Purity and quantity is $250 per sample (1 unit) and raw powder purity is $200 for 50 mg, with results in 3 to 5 business days. Send the material sealed and labeled, with the label claim and the form it contains.
Routine HPLC does not separate the R and S forms; chiral purity is an add-on ($250 where a chiral method exists).
Yes. Capsules, powders, gummies and liquids are measured with sample preparation matched to the product, and reported in mg per serving or % w/w against the label.
Send the product name, the form of the ingredient and the label claim for a quote, or submit a sample with the sample form.
