Schisandra: botanical (lignan-rich fruit).
Schisandra testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.
Marker compound: 2D structure drawn from the PubChem record (CID 3001664).
Schisandra chinensis Fruit
schisandrin, schisandrol B (gomisin A, CAS 58546-54-6), deoxyschizandrin, γ-schisandrin
total or named markers, as your specification states
Botanical (lignan-rich fruit)
Marker compounds: schisandrin (CAS 7432-28-2), schisandrol B (gomisin A, CAS 58546-54-6), deoxyschizandrin (CAS 61281-38-7), γ-schisandrin (CAS 61281-37-6)
Method for the $250 identity, purity and quantity test: HPLC-UV marker-compound assay (schisandrin, schisandrol B, deoxyschizandrin and γ-schisandrin), LC-MS identity, against a reference standard, with results in 3 to 5 business days.
The USP Herbal Medicines Compendium monograph covers identity by HPTLC fingerprint and content of schisandrin, schisandrol B, deoxyschizandrin and γ-schisandrin by HPLC. Full testing to the USP Herbal Medicines Compendium monograph for Schisandra chinensis Fruit is available and quoted.
$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.
No. The $250 test covers identity, purity and quantity by HPLC-UV measurement of schisandrin, schisandrol B, deoxyschizandrin and γ-schisandrin, with LC-MS identity. Full testing to the USP Herbal Medicines Compendium monograph for Schisandra chinensis Fruit is available and quoted.
The lignans in schisandra have overlapping common and chemical names; for example, schisandrol B is also called gomisin A, and γ-schisandrin is also called schisandrin B. Results are reported by the monograph names with synonyms noted.
Schisandra sphenanthera is a related fruit with a different lignan profile that is lower in schisandrin. Comparing the lignan pattern against reference standards helps flag this substitution.
Usually whole dried berries, powder, extract powder or tinctures. Lignans sit mostly in the seed, so whole fruit is ground fully before extraction.
https://pubchem.ncbi.nlm.nih.gov/compound/3001664
Identity facts from the USP monograph header for this compound.
Start an order online, or send the compound name and the tests you need for a quote.
