Cefpodoxime impurities and related standards

Cefpodoxime is held here as a working collection of 26 reference materials across 4 CAS numbers. 9 of the entries are impurity-type materials of the parent, 2 are salt or counter-ion variants and 3 carry a deuterium label. 8 entries carry a verified structure drawing, a coverage of 31%; the rest are listed without a structure rather than with an unverified one. 8 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 18 remain tier C and are kept for search coverage. Because these are degradation and process impurities of a single parent, the useful comparison between suppliers is not the headline count but which letters are actually covered and whether each one arrives with a structure and a stated content basis. Where a letter exists in a monograph but not in a supplier catalogue, that gap is what stops a validation study, and it is worth asking for the letter rather than for a percentage.

Sources: DailyMed (US NLM) - CEFPODOXIME PROXETIL TABLET, FILM COATED [ASCEND LABORATORIES, LLC].

8 reference standards related to Cefpodoxime held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 5 impurity reference standards · 1 api reference standard · 1 chemical reagent · 1 fine chemical. CAS numbers are listed for 8 of 8; 8 entries carry a structure drawing.

On this page

8 reference standards

All entries — structure, identifiers and pack sizes

Cefpodoxime Proxetil Impurity 1 Sodium Salt (Cefpodoxime Proxetil EP Impurity A Sodium Salt)

CAS 82619-04-3C15H17N5O6S2.Na

MW 450.45

BACK ORDERRS-A012340
(Z)-4-Chloro-2-(methoxyimino)-3-oxobutanoic acid

CAS 111230-59-2C5H6ClNO4

MW 179

IN STOCKRS-Z004URG
1-Chloroethyl Isopropyl Carbonate

CAS 98298-66-9C6H11ClO3

MW 166.6

IN STOCKRS-U211OZ8
7-AMCA(Cefpodoxime Proxetil Mother Nucleus)

CAS 24701-69-7C9H12N2O4S

MW 244.27

IN STOCKRS-I004053
Cefpodoxime Impurity 47

CAS not assignedC42H54N10O18S4

MW 1114.25

CUSTOM SYNTHESISRS-I001298
Cefpodoxime Impurity 65

CAS not assignedC36H40N10O15S4

MW 980.16

BACK ORDERRS-I001855
Cefpodoxime impurity 68

CAS not assignedC35H40N10O14S4

MW 952.16

BACK ORDERRS-I001570
Cefpodoxime impurity 73

CAS not assignedC15H17N5O7S2

MW 443.06

CUSTOM SYNTHESISRS-I001AH7

8 reference standards

Frequently asked

How many Cefpodoxime-related reference standards do you hold?

8 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 8 of them and 8 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply a Cefpodoxime impurity that is not listed here?

Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.

What documentation is supplied with Cefpodoxime impurities?

Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.

Do you publish prices or a lead time for Cefpodoxime impurities?

No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to sales@rssechem.com.