Job’s tears: botanical (seed, triglyceride markers).
Job’s tears 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 5497163).
Coix lacryma-jobi Seed
triolein, trilinolein, mixed linoleoyl, oleoyl and palmitoyl triglycerides
total or named markers, as your specification states
Botanical (seed, triglyceride markers)
Marker compounds: triolein (CAS 122-32-7), trilinolein (CAS 537-40-6), mixed linoleoyl, oleoyl and palmitoyl triglycerides
Method for the $250 identity, purity and quantity test: Chromatographic marker-compound assay, with detection selected for the compound, 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 seven named triglycerides by HPLC. Full testing to the USP Herbal Medicines Compendium monograph for Coix lacryma-jobi Seed 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 a chromatographic assay, with detection selected for the compound. Full testing to the USP Herbal Medicines Compendium monograph for Coix lacryma-jobi Seed is available and quoted.
Coix seed oil is a characteristic component of the seed, and the monograph sums seven named triglycerides such as triolein and trilinolein.
The seed oil oxidizes once the seed is hulled or ground, which lowers the intact triglycerides. Fresh, cool-stored samples give the most representative result.
https://pubchem.ncbi.nlm.nih.gov/compound/5497163
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.
