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European Pharmacopoeia (EP) Reference Standard

Ceftazidime pentahydrate
Empirical Formula (Hill Notation):
C22H22N6O7S2 · 5H2O
CAS Number:
Molecular Weight:


pharmaceutical primary standard




pharmaceutical (small molecule)



storage temp.




InChI key


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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the Issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.


Unit quantity: 70 mg. Subject to change. The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.


Other Notes

Sales restrictions may apply.

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Anu Kantele et al.
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 60(6), 837-846 (2015-01-24)
More than 300 million travelers visit regions with poor hygiene annually. A significant percentage of them become colonized by resistant intestinal bacteria such as extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-PE) and may transmit the strains to others and to medical care settings
Johanna Berkhout et al.
Antimicrobial agents and chemotherapy, 59(2), 1138-1144 (2014-12-10)
To evaluate the in vitro effects of the combination of ceftazidime and avibactam on the MICs of both compounds, checkerboard assays were performed for 81 clinical strains, including 55 Enterobacteriaceae strains (32 Klebsiella pneumoniae, 19 Escherichia coli, 1 Citrobacter freundii
S Segal-Maurer et al.
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 28(5), 1134-1138 (1999-08-19)
Increasing prevalence of multidrug-resistant gram-negative organisms has led to a rise in clinically significant infections with these organisms and an increasing therapeutic dilemma. We present a case of a neurosurgical patient who developed ventriculoperitoneal shunt-associated ventriculitis due to ceftazidime-resistant Klebsiella
Jason A Roberts et al.
International journal of antimicrobial agents, 29(2), 117-128 (2006-12-13)
Sepsis and nosocomial infections continue to be a significant problem in intensive care, contributing heavily to mortality and prolonged hospital stay. Early and appropriate antibiotic therapy is critical for optimising outcomes. However, the emergence of highly resistant bacteria, coupled with
C P Rains et al.
Drugs, 49(4), 577-617 (1995-04-01)
Ceftazidime is a third generation cephalosporin antibacterial agent which, since its introduction in the early 1980s, has retained a broad spectrum of in vitro antimicrobial activity and clinical utility in serious infections. However, increasing resistance to ceftazidime and other third

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