Pyrantel pamoate: tetrahydropyrimidine anthelmintic.
Pyrantel pamoate testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.
Pyrantel pamoate: 2D structure drawn from the PubChem record (CID 5281033).
22204-24-6
C11H14N2S · C23H16O6
594.68 g/mol
Tetrahydropyrimidine anthelmintic
Identity: Pyrantel pamoate
IUPAC name: 4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylic acid;1-methyl-2-[(E)-2-thiophen-2-ylethenyl]-5,6-dihydro-4H-pyrimidine
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, organic impurities by HPLC, plus residue on ignition, an iron limit test and loss on drying. Full testing to the USP Pyrantel Pamoate 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 Pyrantel Pamoate monograph is available and quoted.
Pamoic acid is a large counter-ion, so pyrantel base is only about a third of the pamoate salt by weight. Label claims are usually stated as pyrantel base, so the result is converted with the molecular weights.
Yes. Pyrantel can isomerize from its trans form to the cis form in light, and the cis isomer shows as a separate HPLC peak. Keep suspensions and pastes protected from light.
Oral suspensions, chewable tablets and veterinary pastes or feed products. Each is extracted and assayed against a pyrantel pamoate reference standard.
https://pubchem.ncbi.nlm.nih.gov/compound/5281033
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.
