Oleanolic, ursolic, corosolic and arjunolic acids, betulin, Ganoderma triterpenoids, ecdysteroids and guggulsterones.
| Tests | Oleanolic acid, ursolic acid, corosolic acid, arjunolic acid, betulin, betulinic acid, Ganoderma triterpenoic acids, ecdysterone, turkesterone, guggulsterones E and Z; ketosteroids in Cissus quadrangularis by gravimetry |
|---|---|
| Method | HPLC or UPLC; UV/Vis for the guggulsterones estimate; gravimetry for the Cissus ketosteroids |
| Results | Reported against your specification or label claim, with pass/fail where limits apply. |
| Price | Quoted per project |
The chromatographic tests separate the named compounds and measure them against reference standards. The Cissus ketosteroids test is gravimetric: a fraction isolated by the procedure is weighed and reported as a group result.
Several of these compounds are isomers or close relatives. They are separated, and reported individually or as a sum, as your specification states.
Measures oleanolic acid and ursolic acid, two isomeric pentacyclic triterpenoid acids, by HPLC and reports each.
Measures ursolic acid by HPLC as a single compound.
Measures corosolic acid, a triterpenoid acid found in banaba leaf, by HPLC as a single compound.
Measures arjunolic acid, a triterpenoid acid found in Terminalia arjuna, by HPLC as a single compound.
Measures betulin and betulinic acid, lupane triterpenes found in birch bark, by HPLC and reports each.
Measures triterpenoic acids in Ganoderma (reishi) materials by UPLC. Tell us which acids your specification names and whether it states each or a total.
Measures ecdysterone (20-hydroxyecdysone), an ecdysteroid, by HPLC as a single compound.
Measures turkesterone, an ecdysteroid, by HPLC as a single compound.
Measures turkesterone and ecdysterone in the same sample by HPLC and reports each.
Measures guggulsterone E and guggulsterone Z, steroids found in guggul (Commiphora mukul) resin, by HPLC and reports each.
A UV/Vis estimate of guggulsterones in guggul materials, expressed as a reference compound. It does not separate the E and Z forms; use the HPLC test for each.
A gravimetric result for ketosteroids in Cissus quadrangularis extract: the fraction is isolated as the procedure sets and weighed.
Send the material sealed, labeled and protected from light.
Tell us the material or extract and the specification or label claim. We confirm the sample amount at quote.
Questions about a sample or a method, call 360-967-7010 or email [email protected].
