Pharmacopoeial impurityFenbendazole EP Impurity ACat. No. P-F017-002CAS 10605-21-7
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Active ingredient · Fenbendazole family
Pharmaceutical analytical standardFenbendazole
Synonyms: methyl N-(6-phenylsulfanyl-1H-benzimidazol-2-yl)carbamate, Panacur, Phenbendasol, Safe-quard, Safe-Guard, Panacur aquasol, NSC 757824, Carbamic acid, (5-(phenylthio)-1H-benzimidazol-2-yl)-, methyl ester, Methyl (5-(phenylthio)-1H-benzimidazol-2-yl)carbamate, Methyl (5-(phenylsulfanyl)-1H-benzimidazol-2-yl)carbamate, Methyl N-(5-(phenylsulfanyl)-1H-1,3-benzodiazol-2-yl)carbamate, Panacur C Canine, Safe-Guard AquaSol, Panacur, safe-guard, Fenbenpro, Phenbendazole, Safe-Guard, Panacur, Safe-Guard Type A Medicated Article, Pancacur, Axilur, Worm-A-Rest, Pharmakon1600-01501016, Methyl N-(5-phenylsulfanyl-1H-benzimidazol-2-yl)carbamate
- Cat. No.
- P-F017-001
- CAS
- 43210-67-9
- Alternative CAS
- N/A
- Formula
- C15H13N3O2S
- Molecular weight
- 299.35 g/mol
- Category
- Active ingredient (API)
A broad-spectrum benzimidazole anthelmintic, introduced in veterinary medicine in the 1970s: by binding to the parasites' tubulin it blocks their microtubules, acting on intestinal worms, lungworms and tapeworms.
Did you know?It is used in a great many species, from cattle and horses to fish, reptiles and seals; aquarium keepers even use it to rid freshwater shrimp tanks of planarians and hydras.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
Pharmacopoeial standards available
The official European Pharmacopoeia standards for this molecule, supplied with EDQM documentation.
- FenbendazoleBP 692
- Fenbendazole CRSEP F0040000
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Pharmacopoeial impurityFenbendazole EP Impurity ACat. No. P-F017-002CAS 10605-21-7
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Isotopically labelledFenbendazole-d3Cat. No. P-F017-005CAS 1228182-47-5
Isotopically labelledHydroxy Fenbendazole-d3Cat. No. P-F017-006CAS 1596379-07-5
ImpurityFenbendazole-amine hydrochlorideCat. No. P-F017-007CAS 1448346-29-9
ImpurityFenbendazoleamineCat. No. P-F017-008CAS 53065-28-4
ImpurityHydroxy FenbendazoleCat. No. P-F017-009
Pharmacopoeial impurityFenbendazole SulphoxideCat. No. P-F017-010CAS 53716-50-0Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.