Pharmacopoeial impurityPiroxicam EP Impurity BCat. No. P-P138-003CAS 65897-46-3
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Active ingredient · Piroxicam family
Pharmaceutical analytical standardPiroxicam
Synonyms: Feldene, Pyroxycam, Roxicam, Piroftal, BAXO, Larapam, NSC 666076, Flamatrol, Kentene, Feldene p, Piroflam 10, Piroflam 20, Feldene 20, Pirozip 10, Pirozip 20, Brexidol, Artroxicam, Bruxicam, Caliment, Flogobene, Geldene, Improntal, Piroflex, Reudene, Roxiden, Sasulen, Solocalm, Erazon, Pirkam, Riacen, Zunden, Rosiden, Felden, Feldene Fast, Feldene Gel, Pharmakon1600-01500491, NSC 757284
- Cat. No.
- P-P138-001
- CAS
- 36322-90-4
- Alternative CAS
- 85056-47-9 (olamine)
- 90936-70-2 (hydrate)
- 94122-97-1 (sodium salt)
- 164727-04-2 (potassium salt)
- 1044566-76-8 (alternative CAS, same compound)
- Formula
- C15H13N3O4S
- Molecular weight
- 331.35 g/mol
- Category
- Active ingredient (API)
A non-steroidal anti-inflammatory drug of the oxicam class, born from a research project started in 1962, approved in 1979 and first marketed in 1980; it is used in chronic inflammatory joint diseases such as rheumatoid arthritis and osteoarthritis.
Did you know?Its half-life is about 50 hours, one of the longest among anti-inflammatories: it stays in the body so long that its action is very long-lasting.
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.
- PiroxicamBP 463
- Piroxicam CRSEP P2130000
- Piroxicam for system suitability CRSEP Y0001475
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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.