Ceftazidime Selection Antibiotics for Transfected Cell inhibitor

Cat.No.S3649

Ceftazidime(GR20263) is a third-generation cephalosporin that has activity against Gram-negative bacilli, including Pseudomonas aeruginosa.
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Quality Control

Batch: Purity: 99.87%
99.87

Solubility

In vitro
Batch:

Water : 25 mg/mL

DMSO : 2 mg/mL (3.65 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight
Dilution Calculator Molecular Weight Calculator

In vivo
Batch:

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg
g
μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO
%
% Tween 80
% ddH2O
% DMSO
+
%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight 546.58 Formula

C22H22N6O7S2

Storage (From the date of receipt)
CAS No. 72558-82-8 Download SDF Storage of Stock Solutions

Synonyms GR20263 SMILES CC(C)(C(=O)O)ON=C(C1=CSC(=N1)N)C(=O)NC2C3N(C2=O)C(=C(CS3)C[N+]4=CC=CC=C4)C(=O)[O-]

Read more about storage stability stock solution CAS number SMILES

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-08-12)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT07759453 NOT_YET_RECRUITING
Liver Transplant; Carbapenem-resistant Enterobacterales; CRE Colonization
IRCCS Azienda Ospedaliero-Universitaria di Bologna
2026-10-01 PHASE3
NCT07004049 RECRUITING
Bloodstream Infection; Ventilator Associated Bacterial Pneumonia; Hospital Acquired Bacterial Pneumonia; Carbapenem Resistant Bacterial Infection; Multidrug Resistance
National University of Singapore
2025-04-21 PHASE4
NCT06406114 RECRUITING
Drug Allergy; Cephalosporin Allergy; Drug Hypersensitivity; Antibiotic Allergy; Beta Lactam Adverse Reaction; Drug-Induced Anaphylaxis; Cephalosporin Reaction
Massachusetts General Hospital
2025-05-05 PHASE2
NCT07327619 RECRUITING
Hospital-acquired Bacterial Pneumonia and Ventilator-associated Bacterial Pneumonia
Qilu Pharmaceutical Co., Ltd.
2026-01-22 PHASE3
NCT07634198 NOT_YET_RECRUITING
Hospital-acquired Bacterial Pneumonia (HABP); Ventilator-associated Bacterial Pneumonia (VABP)
Nanjing Yoko Biomedical Co., Ltd.
2026-06-04 PHASE3
NCT07431307 NOT_YET_RECRUITING
Ventilator Associated Bacterial Pneumonia (VABP); Hospital Acquired Bacterial Pneumonia (HABP); Blood Stream Infection; Meningitis, Bacterial; Ventriculitis, Infectious
BioVersys AG
2026-07 PHASE2

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