Antibiotics, Antimycotics & Preservatives

Thomas Scientific offers an extensive range of antibiotics, antimycotics, and preservatives ideal for various applications within the laboratory. Cell culture antibiotics are primarily used for microbiology and cell culture work and can prevent contamination of bacterial cultures by other unwanted bacteria.
Antibiotics available include penicillin, streptomycin, and tetracycline. Antimycotics can prevent the growth of fungi and are perfect for laboratory applications to prevent or kill fungi. The selection available includes amphotericin B, nystatin, and fluconazole.
Preservatives are essential in the laboratory to prevent the growth of microorganisms in laboratory reagents, solutions, and samples. They’re ideal for extending the shelf life of your diagnostic kits, buffers, staining solutions, and more, providing precise, accurate lab results.

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Antibiotics, Antimycotics & Preservatives

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  • RPI (Research Products International)

    Prevents bacterial cell wall synthesis. Inhibits crosslinking of peptidoglycan by binding and inactivating transpeptidases. Highly active against gram negative bacteria. Commonly used for the elimination of Agrobacterium species after inoculation. Sensitive to B-Lactamase. Non-toxic to plant…

  • RPI (Research Products International)

    Bacteriostatic and fungistatic mercurial agent. Toxicity: LD50 98 mg/kg

  • RPI (Research Products International)

    Antibiotic related to cephalosporin with antibacterial activity spectrum comparable to cefotaxime. Used to investigate bacterial determinants that influence β-lactam activity.

  • RPI (Research Products International)

    Antifungal anitbiotic that inhibits protein sysnthesis in eukaryotes. Blocks translation of mRNA on the ribosome derived from Streptomyces griseus .

  • Bio Basic Inc.

    The Bio Basic Neomycin Sulfate with a composition of Application: For Laboratory Research Use Only

  • RPI (Research Products International)

    Aminoglycoside antibiotic inhibits protein synthesis in prokaryote and eukaryote cells. Allows selection of cells expressing the Hygromycin B resistant gene. Working concentrations vary from 30-1000 ug/mg, depending on cell lines and growth conditions.

  • RPI (Research Products International)

    Aminoglycoside antibiotic used as a selective agent in transformation experiments. Dissolved in Molecular Biology Grade Water and sterile filtered.

  • RPI (Research Products International)

    Inhibitor of bacterial cell wall synthesis. Active against gram positive and some gram negative bacteria. β-Lactamase sensitive.

  • RPI (Research Products International)

    Inhibitor of bacterial cell wall synthesis resulting in lysis or deformation of the bacterium. Inhibits crosslinking of peptidoglycan by binding and inactivating transpeptidases. Highly active against gram negative bacteria. B-Lactamase sensitive. Plant cell culture tested. Widely used as a…

  • MP Biomedicals

    Sorbic acid (2,4-hexadienoic acid) is a straight chain unsaturated fatty acid. It is an antimicrobial agent. The antimicrobial action of sorbic acid is due to its inhibitory influence on various enzymes in the microbial cell such as enzymes involved in carbohydrate metabolism such as enolase and…

  • RPI (Research Products International)

    Bacteriostatic antibiotic with activity against gram positive and gram negative bacteria. Slightly soluble in water.

  • RPI (Research Products International)

    Antineoplastic agent that acts as an antimetabolite of folic acid. Inhibits the enzyme dihydrofolate reductase and prevents formation of tetrahydrofolate. Protect from light.

  • Synonyms: 3-[2-(3,5-Dimethyl-2-oxocyclohexyl)-2-hydroxyethyl]glutarimide; Actidione; Naramycin A CAS Number: 66-81-9 Formula: C15H23NO4 Formula Weight: 281.35 Linear Formula: C15H23NO4 MDL No.: MFCD00082346 Purity: >=94% (TLC) Storage: 2-8C Beilstein Registry Number: 88868 …

  • MP Biomedicals

    An antiseptic and disinfectant agent. It is effective against a wide range of bacteria, some fungi and some viruses, and an agent for the prevention of gingivitis. Commercial ophthalmic products have used this agent to replace thimerosal as a preservative; however, it can cause skin irritation. …

  • RPI (Research Products International)

    The RPI spectinomycin sulfate is suitable for use in research facilities and chemical laboratories to conduct wide range of experiments. It is available in sturdy bottle that endures heavy and rigorous usage. Application: For Research or Further Manufacturing use only

  • Ampicillin inhibits cell wall biosynthesis (peptidoglycan cross-linking). Stock Solution of antibiotics dissolved in water should be sterilized by filtration through a 0.22 micron filter.

  • MP Biomedicals

    Penicillin G also known as benzylpenicillin. It exert a bacteriocidal as well as a bacteriostatic effect on susceptible bacteria by interfering with the final stages of the synthesis of peptidoglycan, a substance in the bacterial cell wall. Penicillin G is a narrow spectrum antibiotic derived…

  • Bio Basic Inc.

    Cyclosporin A: Cyclosporin A (CsA) is a non-polar cyclic oligopeptide metabolite from the fungus Tolypocladium inflatum. It has to narrow a spectrum of antifungal activity to be very useful as an antibiotic, but it possesses potent immunosuppressive properties, affecting primarily Tlymphocytes. It…

  • This triple antibiotic solution contains penicillin (10,000 IU/mL), streptomycin (10 mg/mL), and amphotericin B (25 μg/mL). Applications Penicllin-Streptomycin-Amphotericin B is used to supplement cell culture media. It is effective against yeast, fungi, gram-positive and gram-negative…

  • MW: 544.43 C22H29N7O5 · 2HCl Mode of action and Anti-microbial spectrum: Puromycin is a protein synthesis inhibitor that causes premature chain termination by acting as an analog of the 3′-terminal end of aminoacyl-tRNA. It prevents…

  • RPI (Research Products International)

    Aminoglycoside antibiotic active against most gram negative bacteria. Selective agent for the incorporation of the NPT II (APH3') gene in plant tissue. Plant cell culture tested. Ingredients: Neomycin B: 85% Neomycin C: 10%

  • MP Biomedicals

    Spectinomycin sulfate is an antibiotic which binds to the 30S subunit to cause misreading. Spectinomycin sulfate is a broad spectrum antibiotic that inhibits protein synthesis (elongation) by binding to the bacterial 30S ribosomal subunit and interfering with peptidyl tRNA translocation.

  • Kanamycin sulfate is an antimicrobial agent effective against Gram-negative and Gram-positive bacteria and mycoplasma. It binds to the 70S ribosomal subunit, inhibits translocation, and elicits miscoding. Cross-resistance occurs between kanamycin and neomycin, framycetin, and paromomycin, and…

  • Technical Advantage:  Effective against Gram-positive and Gram-negative bacteria This product is a mix of the antibiotics Penicillin (10,000 IU) and Streptomycin (10,000 µg/ml) in a 100-fold working concentration. Penicillin (Penicillin G) works by inhibiting peptidoglycan…

  • MP Biomedicals

    Dexamethasone is an anti-inflammatory glucocorticoid that induces the production of phospholipase A2 inhibitory protein (lipocortin). It also inhibits induction of nitric oxide synthase (IC50=5 nM). Dexamethasone has been shown to cause reduction in cyclin A and Cdk2 activity, inhibition of G1/S…

  • Bio Basic Inc.

    The Bio Basic Inc. mithramycin (plicamycin) is suitable for laboratory and research use.

  • RPI (Research Products International)

    10% Sodium Carbonate added as a stabilizer.

  • Bio Basic Inc.

    Rifampicin: Rif is a semisynthetic derivative of rifamycin B and belongs to the rifamycin group of antibiotics. It functions as a bacteriostatic agent by interfering with the synthesis of nucleic acids by inhibiting microorganisms. The chemical, biological properties, activity studies…

  • Technical Advantage:  Effective against Gram-positive and -negative bacteria Neomycin, a nucleoside antibiotic and aminoglycoside, is a protein synthesis inhibitor that causes premature chain termination by acting as an analog of the 3'-terminal end of aminoacyl-tRNA.  It…

  • MP Biomedicals

    Tamoxifen is a Protein Kinase C inhibitor. It induces apoptosis in human malignant glioma cell lines. Tamoxifen and its metabolite 4-hydroxytamoxifen are selective estrogen response modifiers (SERMs) that act as estrogen antagonists in mammary gland. Blocks estradiol-stimulated VEGF production in…

  • RPI (Research Products International)

    Plant cell culture tested. Mixture contains 5 to 1 amoxicillin to potassium clavulanate. Inhibitor of bacterial cell wall synthesis with high activity against gram negative bacteria.

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