Kutki: botanical (root and rhizome, iridoid markers).
Kutki 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 6440892).
Picrorhiza Species Root and Rhizome
picroside I, picroside II
total or named markers, as your specification states
Botanical (root and rhizome, iridoid markers)
Marker compounds: picroside I (CAS 27409-30-9), picroside II (CAS 39012-20-9)
Method for the $250 identity, purity and quantity test: HPLC-UV marker-compound assay (picroside I and picroside II), LC-MS identity, against a reference standard, with results in 3 to 5 business days.
The USP monograph covers identity by HPTLC and HPLC retention time, botanical characteristics, and content of picroside I and picroside II by HPLC. Full testing to the USP Picrorhiza Species Root and Rhizome monograph 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 picroside I and picroside II, with LC-MS identity. Full testing to the USP Picrorhiza Species Root and Rhizome monograph is available and quoted.
Picroside I and picroside II are iridoid glycosides characteristic of kutki root and rhizome, and the monograph sums them as iridoid glycosides on an anhydrous basis.
Related Picrorhiza species and unrelated roots can be sold as kutki. The picroside profile and HPTLC fingerprint help confirm the material.
https://pubchem.ncbi.nlm.nih.gov/compound/6440892
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.
