Dehydrocholic acid: bile acid derivative (triketo cholanic acid).
Dehydrocholic acid testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.
Dehydrocholic acid: 2D structure drawn from the PubChem record (CID 6674).
81-23-2
C24H34O5
402.52 g/mol
Bile acid derivative (triketo cholanic acid)
Identity: Dehydrocholic acid
IUPAC name: (4R)-4-[(5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-3,7,12-trioxo-1,2,4,5,6,8,9,11,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]pentanoic acid
Method for the $250 identity, purity and quantity test: Chromatographic assay, with detection selected for the compound, against a reference standard, with results in 3 to 5 business days.
The USP monograph covers identity by infrared spectroscopy, assay by acid-base titration with sodium hydroxide, residue on ignition, a barium limit, melting range, optical rotation, loss on drying, odor on boiling, and microbial limits including absence of Salmonella. Full testing to the USP Dehydrocholic Acid monograph is available and quoted.
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 |
| Microbiology (injectables) | |
| Endotoxin | $210 |
| Sterility or bioburden | $150 |
| Container closure integrity (CCI) | $50 |
| Screening | |
| Fentanyl screen | $50 |
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 Dehydrocholic Acid monograph is available and quoted.
Dehydrocholic acid is cholic acid with its three hydroxyl groups oxidized to ketones. Partly oxidized intermediates and leftover cholic acid differ in mass, so the test can pick them up.
It has only weak UV absorbance from its ketone groups, so the lab uses a detection method suited to the compound.
https://pubchem.ncbi.nlm.nih.gov/compound/6674
Identity facts from the USP monograph header for this compound.
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