Notoginseng: botanical (saponin-rich root and rhizome).
Notoginseng 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 441934).
Panax notoginseng Root and Rhizome
notoginsenoside R1, ginsenoside Rg1, ginsenoside Rb1, ginsenosides Re and Rd
total or named markers, as your specification states
Botanical (saponin-rich root and rhizome)
Marker compounds: notoginsenoside R1 (CAS 80418-24-2), ginsenoside Rg1 (CAS 22427-39-0), ginsenoside Rb1 (CAS 41753-43-9), ginsenosides Re and Rd
Method for the $250 identity, purity and quantity test: HPLC-UV marker-compound assay (notoginsenoside R1 and ginsenosides Rg1, Re, Rb1 and Rd), 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 botanical microscopy, and content of notoginsenoside R1 and ginsenosides Rg1, Re, Rb1 and Rd by HPLC. Full testing to the USP Herbal Medicines Compendium monograph for Panax notoginseng Root and Rhizome 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 notoginsenoside R1 and ginsenosides Rg1, Re, Rb1 and Rd, with LC-MS identity. Full testing to the USP Herbal Medicines Compendium monograph for Panax notoginseng Root and Rhizome is available and quoted.
All three contain ginsenosides, but notoginseng also contains notoginsenoside R1 and has a different ginsenoside pattern. Comparing the saponin profile against reference standards helps flag substitution with other Panax species.
Ginsenosides absorb UV only weakly, so they are detected near 203 nm, where solvent and matrix background matter more. LC-MS helps confirm peak identity in complex extracts.
Usually dried root pieces, fine powder, powdered extract or capsules. Extracts are often labeled for total saponins, so the label is compared with the sum of the individual marker saponins.
https://pubchem.ncbi.nlm.nih.gov/compound/441934
Identity facts from the USP monograph header for this compound.
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