Sangre de grado: botanical (tree latex).
Sangre de grado 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 215159).
Croton lechleri Latex
taspine, proanthocyanidins (as total)
total or named markers, as your specification states
Botanical (tree latex)
Marker compounds: taspine (CAS 602-07-3), proanthocyanidins (as total)
Method for the $250 identity, purity and quantity test: HPLC-UV marker-compound assay (taspine, proanthocyanidins), 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 its marker compounds by HPLC. Full testing to the USP Herbal Medicines Compendium monograph for Croton lechleri latex 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 with UV detection for the marker compounds (taspine and proanthocyanidins), and LC-MS for identity. Full testing to the USP Herbal Medicines Compendium monograph for Croton lechleri latex is available and quoted.
The monograph covers the red latex collected from cut bark of Croton lechleri, often sold as sangre de grado or dragon's blood. Samples usually arrive as a dark red liquid or a dried resin, and we test the material as received.
Several unrelated plants are sold as dragon's blood, including other Croton species and Dracaena or Daemonorops resins. Their marker profiles differ, so a missing or very low taspine peak can point to a substitute or a diluted latex.
The proanthocyanidins in the latex can oxidize and polymerize over time, which can darken the material and lower the measured marker content. Sealed, cool and dark storage helps keep results consistent between lots.
https://pubchem.ncbi.nlm.nih.gov/compound/215159
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.
