Ceftazidime hydrate

≥90.0%, contains ~10% sodium carbonate as stabilizer

Empirical Formula (Hill Notation):
C22H22N6O7S2 · xH2O
CAS Number:
Molecular Weight:
546.58 (anhydrous basis)
MDL number:
PubChem Substance ID:

Quality Level




powder or crystals


~10% sodium carbonate as stabilizer

Mode of action

cell wall synthesis | interferes

antibiotic activity spectrum

Gram-negative bacteria
Gram-positive bacteria

storage temp.


SMILES string




InChI key


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General description

Chemical structure: ß-lactam
Broad spectrum antibiotic; third generation cephalosporin


Ceftazidime hydrate is used to study the effect of expression, binding and inhibition of penicillin-binding proteins especially PBP3 on bacterial cell wall mucopeptide synthesis. It is also used in bacterial susceptibility studies and to select mutant colonies of interest.


1, 5 g in glass bottle

Biochem/physiol Actions

Cephalosporins, such as ceftazidime , disrupt the synthesis of the peptidoglycan layer of bacterial cell walls.

Other Notes

Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place


Health hazard

Signal Word


Hazard Statements


Eye Irrit. 2 - Resp. Sens. 1 - Skin Sens. 1


11 - Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

  1. How does the storage temperature relate to shipping conditions?

    The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.

  2. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  3. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  4. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  5. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  6. What is the solution stability of the Product C3809, Ceftazidime hydrate?

    Unfortunately, we do not test Product C3809, Ceftazidime hydrate, for solution stability.  However, Chedru-Legros V. et al., Cornea, 29(7),807-11(2010), report 5% solutions of ceftazidime 0.9% sodium chloride can be stored at -20°C for 6 months. Also, Mehta, S. et al., Retina, 31(7),1316-22 (2011), reports single-use polypropylene syringes retain potency, sterility, and stability for 24 weeks when stored at -20°C or -80°C.

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