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)

    Plant cell culture tested. Inhibitor of bacterial cell wall synthesis. Highly active against gram negative bacteria. Sensitive to β-Lactamase.

  • RPI (Research Products International)

    Macrolide antibiotic with primary bacteriostatic action against gram positive bacteria. Cell culture tested.

  • Synonyms: Pen-Strep Storage: -20C UNSPSC Code: 51101500 General description: Penicillin Streptomycin solution, also known as Pen Strep, is the most commonly used antibiotic solution for the culture of mammalian cells. Penicillin Streptomycin solution is used to maintain sterile conditions…

  • The Bio Basic Inc. ampicillin sodium salt USP is suitable for research and laboratory use. Application: For Laboratory Research Only

  • RPI (Research Products International)

    Aminocyclitol antibiotic that inhibits protein synthesis. Cell culture tested.

  • 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)

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

  • RPI (Research Products International)

    Inhibitor of bacterial cell wall synthesis. Inhibits the crosslinking of peptidoglycan by binding and inactivating transpeptidases. High activity against gram negative bacteria. Often used for elimination of Agrobacterium species after inoculation. Resistant to B-Lactamase activity. Non toxic…

  • Quality Biological

    Amphotericin B is used to prevent the contamination of cell cultures by yeast and multicellular fungi. 100X concentration. Just dilute 1:100 to get the final working concentration of 2.50 µg/mL Antifungal agent Amphotericin B prevents the growth of fungi by causing an increase…

  • Kanamycin is an aminoglycoside antibiotic, inhibiting bacterial propagation through binding to the 30S ribosomal subunit and preventing protein synthesis.  This antibiotic is useful in selecting for E. coli bacteria which have been transformed with a plasmid containing a gene which provides…

  • RPI (Research Products International)

    Antineoplastic antibiotic produced by growth of Streptomyces chrysomallys and other species of Streptomyces .

  • MP Biomedicals

    Erythromycin is a macrolide antibiotic that bind to the 50S ribosomal subunit and inhibit protein synthesis. This is an antimicrobial substance produced by the growth of certain strains of Streptomyces erythreus. It is a mixture consisting largely of erythromycin A with lesser amounts of…

  • RPI (Research Products International)

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

  • 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…

  • MilliporeSigma

  • The Bio Basic Inc. 50 mg/mL sterile tetracycline hydrochloride solution is suitable for laboratory and research use.

  • Bio Basic Inc.

    The Bio Basic Inc. streptomycin sulfate is suitable for research and laboratory use. It is mainly used to cure tuberculosis (TB) infection. Application: For Laboratory Research Only

  • Bio Basic Inc.

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

  • BeanTown Chemical

    CAS: 56-75-7 EC No: 200-287-4 MDL No: MFCD00078159 RTECS: AB6825000 Powder Molecular Formula: C11H12Cl2N2O5 MW: 323.13 Melting Point: 148-150°

  • 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…

  • 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…

  • RPI (Research Products International)

    Inhibits dihydrofolate reductase. Active against most gram negative and gram positive aerobic bacteria.

  • The Bio Basic Inc. 30 mg/mL sterile streptomycin sulfate is suitable for laboratory and research use.

  • MP Biomedicals

    Compound 48/80 is a oligomeric mixture of condensation products from N-methyl-p-methoxyphenethylamine and formaldehyde. It is a mixture of low-molecular weight polymers having a degree of polymerization between 3 to 6. Protein G activator similar to mastoparan. Calmodulin and platelet PLC…

  • 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)

    Cefsulodin is a third generation cephalasporin antibiotic that inhibits cell wall synthesis. It has high activity against Pseudomonas aeruginosa with no significant activity against other gram negative bacteria. Limited activity against gram positive and anaerobic bacteria.

  • Bio Basic Inc.

    G 418 sulfate: G 418 is an aminoglycoside antibiotic similar in structure to gentamycin. It exhibits toxicity towards both eukaryotic and prokaryotic cells. The optimal concentration for selection and maintenance must be determined for each cell line. For bacteria and algae, concentrations…

  • Spectinomycin is an aminocyclitol antibiotic, closely related to the aminoglycosides, it inhibits protein synthesis (elongation) by interfering with peptidyl tRNA translocation. Mutation in rpsE (the gene for ribosomal protein S5) prevents binding of spectinomycin. Specinomycin is used in cell…

  • MP Biomedicals

    Rifamycin SV is a broad-spectrum semisynthetic antimicrobial agent of the rifamycin group. Rifamycin SV is used to study potential genes, such as rif15 and rif16, which may be involved in the conversion of rifamycin SV into rifamycin B. It is a potential treatment for traveler’s diarrhea…

  • MP Biomedicals

    Sulfanilamide is a molecule containing the sulfonamide functional group attached to an aniline. As a sulfonamide antibiotic, it functions by competitively inhibiting (i.e., by acting as a substrate analogue) enzymatic reactions involving para-aminobenzoic acid (PABA). PABA is needed in enzymatic…

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