Pharmacopoeial impurityCefadroxil EP Impurity DCat. No. P-C067-003CAS 144790-28-3
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Active ingredient · Cefadroxil family
Pharmaceutical analytical standardCefadroxil
Synonyms: Cephadroxil, Duricef, Ultracef, Cefadrops, Duracef, NSC 756664, Cefatabs, Baxan, Oracefal, p-Hydroxycephalexine, Sumacef, Cefradroxil, Pharmakon1600-01500163, Cefadroxil Monohydrate, Bidocel, Moxacef Kapseln, Baxan Kapseln, Cefos Granulat, Kefroxil Kapseln, Omnidrox Kapseln, Bidocef
- Cat. No.
- P-C067-001
- CAS
- 50370-12-2
- Alternative CAS
- 119922-85-9 (hydrate)
- 66592-87-8 (hydrate)
- 42284-83-3 (sodium salt)
- Formula
- C16H17N3O5S
- Molecular weight
- 363.39 g/mol
- Category
- Active ingredient (API)
A first-generation oral cephalosporin, used for strep throat and skin and urinary tract infections; patented in 1967 and approved in 1978.
Did you know?It is cefalexin with one extra hydroxyl group on the benzene ring, in the para position: a small tweak that makes its blood levels last longer.
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 Cefadroxil family
Pharmacopoeial impurityCefadroxil EP Impurity DCat. No. P-C067-003CAS 144790-28-3
Pharmacopoeial impurityCefadroxil EP Impurity FCat. No. P-C067-004CAS 147103-95-5
Pharmacopoeial impurityCefadroxil EP Impurity F Sodium Salt (Mixture of Diastereomers)Cat. No. P-C067-005
Pharmacopoeial impurityCefadroxil Monohydrate EP Impurity CCat. No. P-C067-006CAS 147103-96-6
Pharmacopoeial impurityCefadroxil USP Related Compound ICat. No. P-C067-007CAS 147103-94-4
Isotopically labelledCefadroxil EP Impurity D-d4 TrifluoroacetateCat. No. P-C067-008
Isotopically labelledCefadroxil-d4Cat. No. P-C067-009CAS 1426174-38-0
Isotopically labelledCefadroxil-d4 TrifluoroacetateCat. No. P-C067-010CAS 1426215-61-3Frequently 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.