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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  • Bio Basic Inc.

    The Bio Basic Inc. penicillin G sodium salt is suitable for laboratory and research use. Application: For Further Manufacturing Use Only

  • RPI (Research Products International)

    Aminocyclitol antibiotic that inhibits protein synthesis. Cell culture tested.

  • Bio Basic Inc.

    Amphotericin B: Amphotericin B is a polyene antifungal antibiotic from Streptomyces sp. It has a high affinity for sterols, primarily ergosterols, of fungal and bacterial cell membranes. After binding to sterols, it forms channels in the membranes, causing small molecules to leak out. Amphotericin…

  • Bio Basic Inc.

    Kanamycin Sulfate is a water-soluble antibiotic originally purified from the bacterium Streptomyces kanamyceticus. Kanamycin acts by binding to the 30S subunit of the bacterial ribosome and inhibiting protein synthesis in susceptible bacteria. Application: For Laboratory Research Use Only

  • RPI (Research Products International)

    Active against gram negative bacteria. Potency approximately 20,000 units per milligram.

  • MP Biomedicals

    Cell Culture Reagent, White Powder CAS Number: 69-52-3 Molecular Formula: C16H18N3O4SNa Molecular Weight: 371.4 Ampicillin sodium salt is a semi-synthetic derivative of penicillin, active as a broad-spectrum antibiotic. It is inactivated by…

  • RPI (Research Products International)

    Mixture of sulfates of polypeptides from certain strains of Bacillus polymixa. Active against gram negative bacteria.

  • MP Biomedicals

    Cefsulodin is a third generation cephalosporin antibiotic that has very specific activity against Pseudomonas aeruginosa. It has no significant activity against other Gram-negative bacteria and very limited activity against Gram-positive bacteria and anaerobic bacteria. Cefuslodin is most…

  • 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…

  • Quality Biological

    Gentamicin is an aminoglycoside complex produced by fermentation of Micromonospora purpurea or M. echinospora. It is used as the sulfate salt. Ready to use solution Applications Gentamicin acts by binding to the 30S subunit of the bacterial ribosome leading to inhibition protein synthesis…

  • 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)

    Bacteriostatic antibiotic active against gram positive and gram negative bacteria. Protect from light.

  • RPI (Research Products International)

    Aminonucleoside antiobiotic allows selection of cells expressing the pac gene. Inhibits growth of gram positive bacteria and various animal and insect cells.

  • MP Biomedicals

    Polymyxin B Sulfate is a mixture of Polymyxin B1 and Polymyxin B2 Sulfate, obtained from Bacillus polymyxia strains. Inhibits gram-negative organisms in vitro Binds to and interferes with permeability of bacterial cytoplasmic membrane Inhibits Ca2+ dependent protein kinase C (PKC) …

  • RPI (Research Products International)

    A peptidyl nucleaside antibiotic isolated from the culture broth of Streptomyces griseogenes, inhibits protein synthesis in both prokaryotes and eukaryates. Supplied as a 10mg/mL sterile solution in HEPES buffer.

  • 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.

  • Bio Basic Inc.

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

  • Bio Basic Inc.

    Amphotericin B (5mg/ml)

  • MP Biomedicals

    Applications Methyl(5-(2-thienylcarbonyl)-1H-benzimidazole-2-yl)carbamate is an anticancer drug that has been shown to interfere with the structure and function of microtubules in interphase and mitotic cells. Malignant cells may be more susceptible to the antimicrotubular effect of nocodazole…

  • RPI (Research Products International)

    Aminoglycoside antibiotic with mode of action similar to Kanamycin and Neomycin. Used as a selective agent for the incorporation of the NPT II (APH3') gene in plant tissue. Plant culture tested.

  • RPI (Research Products International)

    Supplied at a concentration of 20 mg/mL.

  • RPI (Research Products International)

    Highly effective combination against gram negative bacteria such as Agrobacterium strains. β-Lactamase inhibitor. Plant cell culture tested. Hygroscopic. Mixture Contains: 1875 mg Ticarcillin to 125 mg potassium clavulanate (15:1 ratio)

  • MP Biomedicals

    Puromycin is an antibiotic of unique structure and biological activity. It is produced by fermentation using Streptomyces albo-niger. There are four aspects of puromycin's biological activity that are 1) antitumor effect; 2) nephrotoxic action; 3) inhibition of purine and/or protein synthesis…

  • RPI (Research Products International)

    Bacteriostatic antibiotic with activity against gram positive and gram negative bacteria. Cell culture tested.

  • LB Broth & LB Agar The bacterial growth media available are LB (Luria and Bertani); both as liquid and solid media for making solid growth matrices and bacterial plates, such as Petri Dishes. The LB media supplies all the nutrients required for bacterial growth. LB Broth is for liquid…

  • 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.

  • Quality Biological

    Penicillin-Streptomycin acts in two ways. Penicillin inhibits bacterial cell wall synthesis. While, streptomycin inhibits prokaryote protein synthesis by preventing the transition from initiation complex to chain-elongating ribosome, causing miscoding. 100X concentration of mixture of penicillin…

  • For Mycoplasma/Bacterial Elimination from animal cell cultures. 1000X, 10mg/mL, effective concentration 10ug/ml in most culture media. Mycoplasma contamination is a major problem in cell culture in biomedical and cell/molecular biology research. There is no easy visual confirmation of…

  • MP Biomedicals

    Ampicillin is a semi-synthetic derivative of penicillin, active as a broad-spectrum antibiotic. It is inactivated by beta-lactamases and for this reason a beta-lactamase inhibitor should be considered when using ampicillin. Against gram-positive bacteria, ampicillin has a similar mode of action as…

  • Nalidixic acid sodium salt is an antibacterial agent (synthetic quinolone antibiotic), which is inhibitor of bacterial DNA polymerase (DNA gyrase) & avian myeloblastoma virus reverse transcriptase. Inhibits nucleic acid and protein synthesis in Saccharomyces cerevisiae. Typically used at a…

  • RPI (Research Products International)

    Tetracycline antibiotic active against gram positive and gram negative bacteria. Interferes with bacterial cell wall synthesis.

  • Gentamicin Sulfate Solution is effective against gram-positive and gram-negative bacteria, as well as mycoplasma.

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