country

Product Name	Size / Unit Price	Qty

Total: USD 0.00 Checkout

Cat. No.: HY-B0925A

Copy Link Print Information

Oxacillin

14 Cited Publications

Customer Review

Based on 14 publication(s) in Google Scholar

Oxacillin is an orally active synthetic penicillin with good bactericidal activity against staphylococci and other gram-positive pathogens.

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

CAS No.: 66-79-5
Formula: C₁₉H₁₉N₃O₅S
Molecular Weight:401.44

Storage:

Please store the product under the recommended conditions in the Certificate of Analysis.

Data Sheet (279 KB)

Oxacillin Chemical Structure

CAS No.: 66-79-5

Size

Price

Stock

Quantity

Sample (0.1mg)

In-stock

(In Japan)

Apply Now

Get Quote Ask For Quote & Lead Time Consult sales personnel for more information Check price and availability Get Quote Ask For Quote & Lead Time Consult sales personnel for more information Check price and availability

Bulk Inquiry

Amount: USD 0.00

* Please select Quantity before adding items.

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
Chemical Information
Publications (14)
Purity & Documentation
References
Calculators
Help & FAQs
Bioz

Biological Activity

Description

Oxacillin is an orally active synthetic penicillin with good bactericidal activity against staphylococci and other gram-positive pathogens^[1].

IC₅₀ & Target

β-lactam

All Antibiotic Isoforms :

Cellular Effect

Cell Line	Type	Value	Description	References
CHO	IC₅₀	35 μM Compound: Oxacillin	Inhibition of mouse OAT3 expressed in CHO cells assessed as inhibition of fluorescein uptake over 20 mins Inhibition of mouse OAT3 expressed in CHO cells assessed as inhibition of fluorescein uptake over 20 mins	[PMID: 23344796]

In Vitro

Oxacillin inhibits gram positive pathogens with MICs of 0.05, 0.09, 0.32 and 0.80 μg/mL against group A streptococci, Pneutnococci, susceptible staphylococci and penicillin-resistant staphylococci, respectively^[1].
The Oxacillin-resistant strains are highly resistant to other penicillins^[1].

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

In Vivo

Oxacillin (50-800 mg/kg; s.c.; once) shows curative dose (CD₅₀) of 253.3 mg/kg in mice infected with Staphylococcus aureus Evans. The oral CD₅₀ of Oxacillin is 187.2 mg/kg^[2].

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

Animal Model:

CD-1 strain male albino mice infected with S. aureus Evans^[2]
Dosage:

50, 100, 200, 400 and 800 mg/kg
Administration:

Subcutaneous injection, once
Result:

Showed therapeutic activity with CD₅₀ of 253.3 mg/kg.

Chemical Information

CAS No. 66-79-5
Molecular Weight 401.44
Formula C₁₉H₁₉N₃O₅S
SMILES

O=C([C@@H](C(C)(C)S[C@]1([H])[C@@H]2NC(C3=C(C)ON=C3C4=CC=CC=C4)=O)N1C2=O)O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Publications (14)

All Microbiological Assay

Sort by:

Journal Impact Factor

J Exp Med

Antibiotic use in early life impairs MAIT cell-mediated immunity in adulthood. [Abstract]

2026 Mar 2;223(3):e20241287. PMID: 41400657
Emerg Microbes Infect

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

2024 Dec;13(1):2321981. PMID: 38422452
Front Microbiol

Repurposing Antispasmodic Agent Otilonium Bromide for Treatment of Staphylococcus aureus Infections. [Abstract]

2020 Jul 31:11:1720. PMID: 32849366
ACS Omega

Lapatinib Acts against Biofilm Formation and the Hemolytic Activity of Staphylococcus aureus. [Abstract]

2022 Mar 3;7(10):9004-9014. PMID: 35309438
Microorganisms

The Staphylococcus aureus ArlS Kinase Inhibitor Tilmicosin Has Potent Anti-Biofilm Activity in Both Static and Flow Conditions. [Abstract]

2024 Jan 25;12(2):256. PMID: 38399660
BMC Microbiol

The antimicrobial activity of cethromycin against Staphylococcus aureus and compared with erythromycin and telithromycin. [Abstract]

2023 Apr 20;23(1):109. PMID: 37081393
iScience

Loratadine inhibits Staphylococcus aureus virulence and biofilm formation. [Abstract]

2022 Jan 5;25(2):103731. PMID: 35098100
Microbiol Spectr

Clemastine Inhibits the Biofilm and Hemolytic of Staphylococcus aureus through the GdpP Protein. [Abstract]

2022 Apr 27;10(2):e0054121. PMID: 35234502
AMB Express

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

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

Oxacillin 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.
Curr Microbiol

Repurposing CD5789 as an Antimicrobial Agent Against MRSA and Its High Resistant Phonotypes. [Abstract]

2023 May 31;80(7):230. PMID: 37256372
Biomed Res Int

In Vitro Activity of β-Lactams in Combination with β-Lactamase Inhibitors against Mycobacterium tuberculosis Clinical Isolates. [Abstract]

2018 Jul 2:2018:3579832. PMID: 30065936
bioRxiv

2025 Oct 27.
bioRxiv

2024 May 10.
Research Square Print

December 5th, 2022.

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (279 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]. KIRBY WM, et al. Oxacillin: laboratory and clinical evaluation. JAMA. 1962 Sep 1;181:739-44. [Content Brief]

[2]. Yurchenco JA, et al. Nafcillin and oxacillin: comparative antistaphylococcal activity in mice. J Antibiot (Tokyo). 1976 Apr;29(4):460-5. [Content Brief]

Calculators

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)

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.

Keywords

100 mg

Get Quote In-stock