Ceftazidime impurities and related standards
12 reference standards related to Ceftazidime held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.
CAS numbers are listed for 12 of 12; 11 entries carry a structure drawing.
| Compound | CAS No. | Catalogue No. | Formula | MW |
|---|---|---|---|---|
| Ceftazidime Impurity A | 1000980-60-8 | RS-C008001 | C22H22N6O7S2 | 546.58 |
| Ceftazidime Impurity H | 1354396-23-8 | RS-C008004 | C23H24N6O7S2 | 560.6 |
| Ceftazidime Impurity M | 149-30-4 | RS-C008005 | C7H5NS2 | 167.25 |
| Ceftazidime Impurity 37 | 158183-05-2 | RS-C008006 | C20H22N4O4S3 | 478.61 |
| Ceftazidime Impurity G | 194241-83-3 | RS-C008007 | C11H14N4O5S | 314.32 |
| Ceftazidime Impurity 31 | 2647895-25-6 | RS-C008008 | C17H16N4O4S3 | 436.53 |
| Ceftazidime Impurity C | 3432-88-0 | RS-C008009 | C13H13N3O3S | 291.33 |
| Ceftazidime Impurity D | 73547-69-0 | RS-C008010 | C45H44N6O7S2 | 845 |
| Ceftazidime EP Impurity B | 97148-38-4 | RS-C008012 | C22H22N6O7S2 | 546.58 |
| Ceftazidime Impurity F (EP) | 110-86-1 | RS-C008003 | C5H5N | 79.1 |
| Ceftazidime Impurity C (EP)(7-APCA,ceftazidime mother nucleus)) | 96752-43-1 | RS-C008011 | C13H13N3O3S | 291.33 |
| Ceftazidime Impurity E | 102772-66-7 | RS-C008002 | C26H30N6O7S2 | 602.68 |
Structures
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Ceftazidime Impurity A
COA per lot -
Ceftazidime Impurity H
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Ceftazidime Impurity M
COA per lot -
Ceftazidime Impurity 37
COA per lot -
Ceftazidime Impurity G
COA per lot -
Ceftazidime Impurity 31
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Ceftazidime Impurity C
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Ceftazidime Impurity D
COA per lot
Frequently asked
How many Ceftazidime-related reference standards do you hold?
12 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 12 of them and 11 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Ceftazidime 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 Ceftazidime 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 Ceftazidime 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 [email protected].