Eprinomectin: avermectin macrocyclic lactone (veterinary antiparasitic).
Eprinomectin testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.
Eprinomectin: 2D structure drawn from the PubChem record (CID 6450531).
123997-26-2
C50H75NO14
914.1 g/mol
Avermectin macrocyclic lactone (veterinary antiparasitic)
Identity: Eprinomectin (B1a component)
IUPAC name: N-[(2S,3R,4R,6S)-6-[(2S,3R,4S,6R)-6-[(1’R,2R,3S,4’S,6S,8’R,10’Z,12’S,13’S,14’Z,16’Z,20’R,21’R,24’S)-21′,24′-dihydroxy-3,11′,13′,22′-tetramethyl-2′-oxo-2-propan-2-ylspiro[2,3-dihydropyran-6,6′-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene]-12′-yl]oxy-4-methoxy-2-methyloxan-3-yl]oxy-4-methoxy-2-methyloxan-3-yl]acetamide
Method for the $250 identity, purity and quantity test: HPLC-UV purity and assay, LC-MS identity, against a reference standard, with results in 3 to 5 business days.
The USP monograph covers identity by infrared spectroscopy and HPLC retention time, assay by HPLC, the 8a-oxo-B degradant and organic impurities by HPLC, plus residue on ignition, optical rotation and water content. Full testing to the USP Eprinomectin 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 HPLC-UV for purity and assay and LC-MS for identity. Full testing to the USP Eprinomectin monograph is available and quoted.
Eprinomectin is a mixture of a major B1a component and a minor B1b component that differ by one methylene group. The HPLC assay measures both, and the monograph defines eprinomectin as their sum.
It is an oxidation product of eprinomectin, so the monograph sets its own HPLC limit for it. A high result usually points to an old or poorly stored sample.
Powder, pour-on solutions and injectable solutions. Each is diluted in an organic solvent and assayed against an eprinomectin reference standard.
https://pubchem.ncbi.nlm.nih.gov/compound/6450531
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.
