Cat. No.: HY-B0712

Ceftriaxone

(Synonyms: Ro 13-9904 free acid)

16 Cited Publications

Customer Review

Based on 16 publication(s) in Google Scholar

Ceftriaxone (Ro 13-9904 free acid) is a broad spectrum β-lactam third-generation cephalosporin antibiotic, which has good antibacterial activity against a variety of gram-negative and positive bacteria. Ceftriaxone is a covalent inhibitor of GSK3β with IC₅₀ value of 0.78 μM. Ceftriaxone is an inhibitor of Aurora B. Ceftriaxone has anti-inflammatory, antitumor and antioxidant activities. Ceftriaxone can be used in the study of bacterial infections and meningitis.

For research use only. We do not sell to patients.

Purity: 99.87%
CAS No.: 73384-59-5
Formula: C₁₈H₁₈N₈O₇S₃
Molecular Weight:554.58

Storage:

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

Ceftriaxone Chemical Structure

CAS No.: 73384-59-5

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Top Publications Citing

Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- IC₅₀ & Target
- Cellular Effect
- In Vitro
- In Vivo
- Clinical Trial
Chemical Information
Publications (16)
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Bioz

Biological Activity

Description

IC₅₀ & Target

β-lactam

All Antibiotic Isoforms :

All GSK-3 Isoforms :

All Aurora Kinase Isoforms :

Cellular Effect

Cell Line	Type	Value	Description	References
CHO	IC₅₀	153.8 μM Compound: ceftriaxone	Inhibition of Cav1.2 current measured using QPatch automatic path clamp system in CHO cells expressing Cav1.2, beta-2 and alpha-2/delta-1 subunits Inhibition of Cav1.2 current measured using QPatch automatic path clamp system in CHO cells expressing Cav1.2, beta-2 and alpha-2/delta-1 subunits	[PMID: 23812503]
S2	IC₅₀	840 μM Compound: Ceftriaxone	TP_TRANSPORTER: inhibition of PAH uptake in OAT1-expressing S2 cells TP_TRANSPORTER: inhibition of PAH uptake in OAT1-expressing S2 cells	[PMID: 12005172]
S2	IC₅₀	>2000 μM Compound: Ceftriaxone	TP_TRANSPORTER: inhibition of Estrone sulfate uptake in OAT3-expressing S2 cells TP_TRANSPORTER: inhibition of Estrone sulfate uptake in OAT3-expressing S2 cells	[PMID: 12005172]

In Vitro

Ceftriaxone (100 μM, 24 h) protects MPP⁺ treated astrocytes by inhibiting the NF-κB/JNK/c-Jun signaling pathway^[3].
Ceftriaxone (500 μM, 24-48 h) effectively inhibits unanchored cell growth in A549, H520 and H1650 lung cancer cells by inhibiting Aurora B^[4].

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

Cell Viability Assay^[3]

Cell Line:

Astrocyte
Concentration:

100 μM
Incubation Time:

24 h
Result:

Improved cell viability and increased glutamate uptake after MPP⁺ expose.

Western Blot Analysis^[3]

Cell Line:

Astrocyte
Concentration:

100 μM
Incubation Time:

24 h
Result:

Enhanced GLT-1 and GFAP expression.
Decreased the expression of p-p50, p-IKKα, p-Relb.
Decreased the number of TUNEL-positive cells.

In Vivo

Ceftriaxone (200 mg/kg Intraperitoneal injection for 6 weeks) improves functional markers and oxidative stress and inflammation parameters in a rat model of D-galactose (DGL) -induced liver and kidney injury^[5].
Ceftriaxone (200, 400 mg/kg, Intraperitoneal injection) has a protective effect on convulsion induced by Pentylenetetrazol (PTZ) and PTZ-related oxidative damage in rats^[6].
Ceftriaxone (100, 200 mg/kg, Intraperitoneal injection) reduces mechanical dysodynia and hyperalgesia by activating GLT-1 in Streptozocin (HY-13753)-induced diabetic rat models^[7].

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

Animal Model:

DGL-induced rat model^[5]
Dosage:

200 mg/kg
Administration:

i.p.
Result:

Reduced the BUN, Cr, AST and ALT levels.
Attenuated the MDA levels and enhanced GPx and CAT activities.
Reduced the levels of IL-1β and TNF-α mRNA.

Animal Model:

PTZ-induced rat model^[6]
Dosage:

200, 400 mg/kg
Administration:

i.p. 60 min before to PTZ (70 mg/kg)
Result:

Both of the two ceftriaxone groups had lower spike percentages than the saline group.
Significantly lower MDA levels and higher SOD activity in 200 and 400 mg/kg.

Clinical Trial

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

Chemical Information

CAS No. 73384-59-5
Appearance Solid
Molecular Weight 554.58
Formula C₁₈H₁₈N₈O₇S₃
Color Off-white to yellow
SMILES

O=C(C(N12)=C(CSC(N(C)NC3=O)=NC3=O)CS[C@]2([H])[C@H](NC(/C(C4=CSC(N)=N4)=N\OC)=O)C1=O)O
Synonyms

Ro 13-9904 free acid
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

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

Publications (16)

All Microbiological Assay

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Journal Impact Factor

Signal Transduct Target Ther

Selective depletion of tumor-associated SAMHD1 enhances chemotherapeutic efficacy and antitumor immune responses. [Abstract]

2025 Dec 15;10(1):406. PMID: 41392286
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
Sci Adv

EphB1-NR2B receptor signaling in glutamatergic neurons of the ventroposteromedial thalamic nucleus regulates emergence from anesthesia. [Abstract]

2025 Dec 5;11(49):eadw7972. PMID: 41348875
EBioMedicine

A novel inhibitor of monooxygenase reversed the activity of tetracyclines against tet(X3)/tet(X4)-positive bacteria. [Abstract]

2022 Apr;78:103943. PMID: 35306337
Proc Natl Acad Sci U S A

Antibiotics accumulate in Klebsiella pneumoniae liver abscesses but fail to eliminate antibiotic-tolerant populations. [Abstract]

2025 Dec 2;122(48):e2524436122. PMID: 41296732
Chemosphere

Sustainable production of Fe-doped MnO2 nanoparticles for accelerated tetracycline antibiotic detoxification. [Abstract]

2023 Dec:344:140353. PMID: 37797898
Emerg Microbes Infect

AMXT-1501 targets membrane phospholipids against Gram-positive and -negative multidrug-resistant bacteria. [Abstract]

2024 Dec;13(1):2321981. PMID: 38422452
Cell Chem Biol

AspSnFR: A genetically encoded biosensor for real-time monitoring of aspartate in live cells. [Abstract]

2024 May 20:S2451-9456(24)00179-X. PMID: 38806058
Antimicrob Agents Chemother

Stepwise evolution and clonal enrichment of gepotidacin resistance in Neisseria gonorrhoeae. [Abstract]

2026 Apr;70(4):e0170625. PMID: 41810969
FASEB J

Enhancing the Susceptibility of Methicillin-Resistant Staphylococcus aureus to β-Lactam Antibiotics Through the Use of 4-Methoxysalicyl Aldehyde. [Abstract]

2026 Jan 31;40(2):e71438. PMID: 41524623
BMC Microbiol

Klebsiella pneumoniae under xylose pressure: the growth adaptation, antimicrobial susceptibility, global proteomics analysis and role of XylA and XylB proteins. [Abstract]

2025 Apr 29;25(1):257. PMID: 40301709
Microbiol Spectr

The adaptive growth and mechanisms of Klebsiella pneumoniae under sucrose and glucose exposure. [Abstract]

2025 Oct 16:e0160325. PMID: 41099518
AMB Express

Repurposing pinaverium bromide against Staphylococcus and its biofilms with new mechanisms. [Abstract]

2024 Dec 24;14(1):141. PMID: 39718732

Ceftriaxone purchased from MedChemExpress. Usage Cited in: AMB Express. 2024 Dec 24;14(1):141. [Abstract]

Combinational antimicrobial effects between PVB and conventional antibiotics against MRSA ATCC 43,300. TET, Tetracycline. DOX, Doxycycline. E, Erythromycin. AZI, Azithromycin. P, Penicillin. CAZ, Ceftazidime. AMP, Ampicillin. CEZ, Cefazolin. CEF, Cefotaxime. OXA, Oxacillin. CRO, Ceftriaxone. AMK, Amikacin. GEN, Gentamycin, KANA, Kanamycin. TOB, Tobramycin. SPC, Spectinomycin.
BMC Cancer

Cholesterol-induced colorectal cancer progression and its mitigation through gut microbiota remodeling and simvastatin treatment. [Abstract]

2025 Jun 1;25(1):977. PMID: 40452015
Diagn Microbiol Infect Dis

A rapid bacterial labeling method for phenotypic antimicrobial susceptibility testing. [Abstract]

2026 Feb;114(2):117181. PMID: 41205476
Rapid Commun Mass Spectrom

Sensitive Detection of Salmonella Susceptibility to Ceftriaxone and Azithromycin Using Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry. [Abstract]

2026 May 30;40(10):e70053. PMID: 41704149

Solvent & Solubility

In Vitro:

DMSO : 31.25 mg/mL (56.35 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

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

1.8032 mL

9.0158 mL

18.0317 mL

5 mM

0.3606 mL

1.8032 mL

3.6063 mL

10 mM

0.1803 mL

0.9016 mL

1.8032 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.

Molarity Calculator

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

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Dilution Calculator

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: ≥ 2.5 mg/mL (4.51 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (4.51 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (4.51 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 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 (25.0 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

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (284 KB)
SDS (396 KB)
- English - EN (396 KB)
- Français - FR (396 KB)
- Deutsch - DE (396 KB)
- Norwegian - NO (396 KB)
- Español - ES (396 KB)
- Swedish - SV (396 KB)
- Italian - IT (396 KB)
- Korean - KR (396 KB)
- Portuguese - PT (396 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)
Handling Instructions (2659 KB)

References

[1]. Nahata MC, et al. Ceftriaxone: a third-generation cephalosporin. Drug Intell Clin Pharm. 1985 Dec;19(12):900-6. [Content Brief]

[2]. Nassar H, et al. Molecular docking, molecular dynamics simulations and in vitro screening reveal cefixime and ceftriaxone as GSK3β covalent inhibitors. RSC Adv. 2023 Apr 11;13(17):11278-11290. [Content Brief]

[3]. Zhang Y, et al. Ceftriaxone Protects Astrocytes from MPP(+) via Suppression of NF-κB/JNK/c-Jun Signaling. Mol Neurobiol. 2015 Aug;52(1):78-92. [Content Brief]

[4]. Li X, et al. Ceftriaxone, an FDA-approved cephalosporin antibiotic, suppresses lung cancer growth by targeting Aurora B. Carcinogenesis. 2012 Dec;33(12):2548-57. [Content Brief]

[5]. Hakimizadeh E, et al. Ceftriaxone improves hepatorenal damages in mice subjected to D-galactose-induced aging. Life Sci. 2020 Oct 1;258:118119. [Content Brief]

[6]. Uyanikgil Y, et al. Positive effects of ceftriaxone on pentylenetetrazol-induced convulsion model in rats. Int J Neurosci. 2016;126(1):70-5. [Content Brief]

[7]. Gunduz O, et al. Anti-allodynic and anti-hyperalgesic effects of ceftriaxone in streptozocin-induced diabetic rats. Neurosci Lett. 2011 Mar 10;491(1):23-5. [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	1.8032 mL	9.0158 mL	18.0317 mL	45.0792 mL
	5 mM	0.3606 mL	1.8032 mL	3.6063 mL	9.0158 mL
	10 mM	0.1803 mL	0.9016 mL	1.8032 mL	4.5079 mL
	15 mM	0.1202 mL	0.6011 mL	1.2021 mL	3.0053 mL
	20 mM	0.0902 mL	0.4508 mL	0.9016 mL	2.2540 mL
	25 mM	0.0721 mL	0.3606 mL	0.7213 mL	1.8032 mL
	30 mM	0.0601 mL	0.3005 mL	0.6011 mL	1.5026 mL
	40 mM	0.0451 mL	0.2254 mL	0.4508 mL	1.1270 mL
	50 mM	0.0361 mL	0.1803 mL	0.3606 mL	0.9016 mL

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Ceftriaxone

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Publications Citing Use of MedChemExpress (MCE) Ceftriaxone

All Antibiotic Isoforms

All GSK-3 Isoforms

All Aurora Kinase Isoforms

Biological Activity

Chemical Information

Publications (16)

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

Ceftriaxone Related Classifications

Cat. No.: HY-B0712