Pharmacopoeial impurityCefpodoxime Proxetil EP Impurity ACat. No. P-C095-002CAS 80210-62-4
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Impurity or related compound · Cefpodoxime family
Pharmaceutical analytical standardO-Desisopropyl-O-ethyl Cefpodoxime Proxetil
Synonyms: Cefpodoxime Proxetil Impurity 6 (Mixture of Diastereomers), Cefpodoxime Proxetil Impurity 5, Cefpodoxime Impurity 49, Cefpodoxime Impurity 5, 1-Ethoxycarbonyloxyethyl (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
- Cat. No.
- P-C095-025
- CAS
- 82619-01-0
- Alternative CAS
- N/A
- Formula
- C20H25N5O9S2
- Molecular weight
- 543.57 g/mol
- Category
- Impurity or related compound
Family: Cefpodoxime
A third-generation oral cephalosporin, taken as a prodrug (cefpodoxime proxetil) for ear, throat, sinus and other infections; patented in 1980 and approved in 1989.
Did you know?It is also approved in veterinary medicine: in the United States it is used as tablets for skin infections in dogs.
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.
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Pharmacopoeial impurityCefpodoxime Proxetil EP Impurity G (Mixture of Diastereomers)Cat. No. P-C095-008CAS 947692-15-1
Pharmacopoeial impurityCefpodoxime Proxetil EP Impurity HCat. No. P-C095-009CAS 947692-16-2Frequently 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?
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