Cat. No.: HY-B1418

Tazobactam

(Synonyms: CL-298741; YTR-830H)

20 Cited Publications

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Based on 20 publication(s) in Google Scholar

Tazobactam (CL-298741) is a potent β-lactamases inhibitor and penicillin antibiotic. Tazobactam has antibacterial activity. Tazobactam can be used for pneumonia research.

Nos produits utilisent uniquement pour la recherche. Nous ne vendons pas aux patients.

Pureté: 99.94%
CAS No.: 89786-04-9
Formule: C₁₀H₁₂N₄O₅S
Masse moléculaire:300.29

Stockage:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month

Tazobactam Chemical Structure

CAS No.: 89786-04-9

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Activité biologique
- Description
- IC₅₀ & Target
- In Vitro
- In Vivo
- Essai clinique
Chemical Information
Publications (20)
Solvant et solubilité
- In Vitro
- In Vivo
Pureté et documentation
Références
Help & FAQs
Classifications
Bioz

Activité biologique

Description

Tazobactam (CL-298741) is a potent β-lactamases inhibitor and penicillin antibiotic. Tazobactam has antibacterial activity. Tazobactam can be used for pneumonia research^[1]^[2].

IC₅₀ & Target

β-lactam

Voir tous les produits spécifiques à Isoform Beta-lactamase :

Voir tous les produits spécifiques à Isoform Antibiotic :

In Vitro

Tazobactam (CL-298741) (5 μg/mL; 18 hours) has bactericidal activity and inhibit the growth of the bacteria in a dose-dependent manner^[2].
Tazobactam (CL-298741) (1-10 μg/mL; 6 hours; Prot. vulgaris and M. morgan) inhibits various types β-lactamase activity and with ID₅₀ values of ＜ 10 μg/mL, respectively^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Tazobactam (CL-298741) (1000 mg/kg; i.p.; four times a day, for 36 and 84 hours; BALB/c mice) decreases the number of bacteria in mice and survived in low doses^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model:

BALB/c mice^[1]
Dosage:

1000 mg/kg
Administration:

Intraperitoneal injection; four times a day, for 36 and 84 hours
Result:

Decraesed the number of bacteria and neutrophils in BALF than in the control group.

Essai clinique

NCT Number	Sponsor	Condition	Start Date	Phase A549
NCT01329991	Plexxikon\|		2011-05	PHASE1

Chemical Information

CAS No. 89786-04-9
Appearance Solid
Masse moléculaire 300.29
Formule C₁₀H₁₂N₄O₅S
Color White to off-white
SMILES

O=C([C@@H]([C@@](CN1N=NC=C1)(C)S([C@]2([H])C3)(=O)=O)N2C3=O)O
Synonyms

CL-298741; YTR-830H
Structure Classification
- Antibiotics
- Beta-lactam Antibiotics
- Antibiotics
- Resistance Selection
Initial Source
- Microorganisms
Gram-negative bacilli
Livraison

Room temperature in continental US; may vary elsewhere.

Stockage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Publications (20)

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Journal Impact Factor

Nat Commun

Antimicrobial resistance and population genomics of multidrug-resistant Escherichia coli in pig farms in mainland China. [Abstract]

2022 Mar 2;13(1):1116. PMID: 35236849
ACS Environ Au

Machine Learning-Assisted Recognition of Environmental Sulfur-Containing Chemicals in Nontargeted Mass Spectrometry Analysis of Inadequate Mass Resolution. [Abstract]

2025 Aug 5;5(6):573-582. PMID: 41277996
Anal Chem

Exposome-Scale Investigation of Cl-/Br-Containing Chemicals Using High-Resolution Mass Spectrometry, Multistage Machine Learning, and Cloud Computing. [Abstract]

2025 Jun 3;97(21):11099-11109. PMID: 40401576
Virulence

Antibacterial efficacy and mechanism of the novel antimicrobial peptide lachnospirin-1 against Acinetobacter baumannii. [Abstract]

2026 Dec 31;17(1):2646808. PMID: 41838520
Molecules

Seeking Correlation Among Porin Permeabilities and Minimum Inhibitory Concentrations Through Machine Learning: A Promising Route to the Essential Molecular Descriptors. [Abstract]

2025 Mar 9;30(6):1224. PMID: 40142001
Int J Antimicrob Agents

Elucidating adaptive compensatory tigecycline resistance mechanisms of RamA, RarA and SoxS in Klebsiella pneumoniae. [Abstract]

2025 Jun 9:107551. PMID: 40499596
PLoS Pathog

Differential contribution of PBP occupancy and efflux on the effectiveness of β-lactams at their target site in clinical isolates of Neisseria gonorrhoeae. [Abstract]

2024 Dec 31;20(12):e1012783. PMID: 39739989
Antimicrob Agents Chemother

Improved hydrolysis of piperacillin by OXA-48-like R214G variants, a selective advantage under piperacillin-tazobactam exposure. [Abstract]

2026 Jun 3;70(6):e0126725. PMID: 42053451
Antimicrob Agents Chemother

Relative inhibitory activities of newly developed diazabicyclooctanes, boronic acid derivatives, and penicillin-based sulfone β-lactamase inhibitors against broad-spectrum AmpC β-lactamases. [Abstract]

2024 Nov 6;68(11):e0077524. PMID: 39365068
Antimicrob Agents Chemother

Penicillin-Binding Protein 5/6 Acting as a Decoy Target in Pseudomonas aeruginosa Identified by Whole-Cell Receptor Binding and Quantitative Systems Pharmacology. [Abstract]

2023 Jun 15;67(6):e0160322. PMID: 37199612
J Antimicrob Chemother

Unravelling the triad of penicillin-binding proteins, β-lactamase activity, and mRNA dynamics in Pseudomonas aeruginosa AmpC induction. [Abstract]

2025 Nov 5:dkaf408. PMID: 41206063
Microbiol Spectr

Penicillin-Binding Protein Occupancy Dataset for 18 β-Lactams and 4 β-Lactamase Inhibitors in Neisseria gonorrhoeae. [Abstract]

2023 Jun 15;11(3):e0069223. PMID: 37093051
Microbiol Spectr

PBP Target Profiling by β-Lactam and β-Lactamase Inhibitors in Intact Pseudomonas aeruginosa: Effects of the Intrinsic and Acquired Resistance Determinants on the Periplasmic Drug Availability. [Abstract]

2023 Feb 14;11(1):e0303822. PMID: 36475840
Infect Drug Resist

2026 May 8;19.
Eur J Clin Microbiol Infect Dis

In-vitro activity of the novel β-lactam/β-lactamase inhibitor combinations and cefiderocol against carbapenem-resistant Pseudomonas spp. clinical isolates collected in Switzerland in 2022. [Abstract]

2025 Mar;44(3):571-585. PMID: 39704920
Eur J Clin Microbiol Infect Dis

In-vitro activity of newly-developed β-lactamase inhibitors avibactam, relebactam and vaborbactam in combination with anti-pseudomonal β-lactam antibiotics against AmpC-overproducing clinical Pseudomonas aeruginosa isolates. [Abstract]

2025 Feb;44(2):277-284. PMID: 39589655
Int J Med Microbiol

In vitro synergistic activity of aztreonam (AZT) plus novel and old β-lactamase inhibitor combinations against metallo-β-lactamase-producing AZT-resistant Enterobacterales. [Abstract]

2021 Oct;70(10). PMID: 34605763
medRxiv

The association between undetected heteroresistance and antibiotic treatment failure in complicated urinary tract infection. [Abstract]

2025 Mar 13:2025.03.11.25323422. PMID: 40162257
bioRxiv

2024 May 10.
Research Square Preprint

2021 Aug.

Solvant et solubilité

In Vitro:

DMSO : 50 mg/mL (166.51 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H₂O : < 0.1 mg/mL (insoluble)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

3.3301 mL

16.6506 mL

33.3011 mL

5 mM

0.6660 mL

3.3301 mL

6.6602 mL

10 mM

0.3330 mL

1.6651 mL

3.3301 mL

Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.

Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Calculateur de molarité

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Calculateur de dilution

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

Stock Solution Working Solution

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline

Solubility: ≥ 2.08 mg/mL (6.93 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)

Solubility: ≥ 2.08 mg/mL (6.93 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil

Solubility: ≥ 2.08 mg/mL (6.93 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Working solution concentration: 0.22 mg/mL

Pureté et documentation

Select Batch:

Pureté: 99.98%

Assay: 99.98%

ee.: 99.98%

Fiche technique (280 KB)
SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Instruction de manipulation (2659 KB)

Références

[1]. Harada Y, et, al. In vitro and in vivo activities of piperacillin-tazobactam and meropenem at different inoculum sizes of ESBL-producing Klebsiella pneumoniae. Clin Microbiol Infect. 2014 Nov;20(11):O831-9. [Content Brief]

[2]. Higashitani F, et, al. Inhibition of beta-lactamases by tazobactam and in-vitro antibacterial activity of tazobactam combined with piperacillin. J Antimicrob Chemother. 1990 Apr;25(4):567-74. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	3.3301 mL	16.6506 mL	33.3011 mL	83.2529 mL
	5 mM	0.6660 mL	3.3301 mL	6.6602 mL	16.6506 mL
	10 mM	0.3330 mL	1.6651 mL	3.3301 mL	8.3253 mL
	15 mM	0.2220 mL	1.1100 mL	2.2201 mL	5.5502 mL
	20 mM	0.1665 mL	0.8325 mL	1.6651 mL	4.1626 mL
	25 mM	0.1332 mL	0.6660 mL	1.3320 mL	3.3301 mL
	30 mM	0.1110 mL	0.5550 mL	1.1100 mL	2.7751 mL
	40 mM	0.0833 mL	0.4163 mL	0.8325 mL	2.0813 mL
	50 mM	0.0666 mL	0.3330 mL	0.6660 mL	1.6651 mL
	60 mM	0.0555 mL	0.2775 mL	0.5550 mL	1.3875 mL
	80 mM	0.0416 mL	0.2081 mL	0.4163 mL	1.0407 mL
	100 mM	0.0333 mL	0.1665 mL	0.3330 mL	0.8325 mL

Keywords

Tazobactam

20 Cited Publications

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Publications Citing Use of MedChemExpress (MCE) Tazobactam

Voir tous les produits spécifiques à Isoform Beta-lactamase

Voir tous les produits spécifiques à Isoform Antibiotic

Activité biologique

Chemical Information

Publications (20)

Solvant et solubilité

Pureté et documentation

Références

Help & FAQs

Complete Stock Solution Preparation Table

Tazobactam Related Classifications

HY-B1418 Related Classifications