Active ingredientOxacillin Sodium MonohydrateCat. No. P-O046-001CAS 7240-38-2
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Impurity or related compound · Oxacillin family
Pharmaceutical analytical standardOxacillin Impurity 2 (Mixture of diastereomers)
Synonyms: (3S,7R)-2,2-Dimethyl-5-(5-methyl-3-phenyl-1,2-oxazol-4-yl)-7,7a-dihydro-3H-imidazo[5,1-b][1,3]thiazole-3,7-dicarboxylic acid
- Cat. No.
- P-O046-013
- CAS
- N/A
- Alternative CAS
- N/A
- Formula
- C19H19N3O5S
- Molecular weight
- 401.44 g/mol
- Category
- Impurity or related compound
Family: Oxacillin
A semisynthetic penicillin resistant to penicillinase, the enzyme many staphylococci use to destroy penicillin; patented in 1960 and approved in 1962, it is used against infections caused by penicillin-resistant Staphylococcus aureus.
Did you know?Resistant staphylococci are called MRSA after methicillin, but laboratories have long used oxacillin to identify them, so they are also known as ORSA; unlike methicillin, it could also be taken by mouth.
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.
More products in the Oxacillin family
Active ingredientOxacillin Sodium MonohydrateCat. No. P-O046-001CAS 7240-38-2
Active ingredientOxacillin Sodium SaltCat. No. P-O046-002CAS 1173-88-2
Pharmacopoeial impurityOxacillin EP Impurity B Disodium Salt (Mixture of Diastereomers)Cat. No. P-O046-004CAS 1642559-72-5
Pharmacopoeial impurityOxacillin EP Impurity CCat. No. P-O046-005CAS 1136-45-4
Pharmacopoeial impurityOxacillin EP Impurity D (Mixture of Diastereomers)Cat. No. P-O046-007CAS 1642559-63-4
Pharmacopoeial impurityOxacillin EP Impurity FCat. No. P-O046-008CAS 5053-35-0
Pharmacopoeial impurityOxacillin EP Impurity GCat. No. P-O046-009CAS 724695-30-1
Pharmacopoeial impurityOxacillin EP Impurity ICat. No. P-O046-010Frequently 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.