Antibiotics

Streptavidin is used as a tetrameric protein used to visualize biotin conjugated molecules in ELISA. Due to the strong affinity of biotin and biotinylated molecules has made streptavidin one of the most important components in diagnostics and laboratory kits. Streptavidin is widely used in molecular biology through its unique high affinity for the biotin. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Delafloxacin meglumine (RX-3341 meglumine) is a broad-spectrum fluoroquinolone antibiotic.

A broad-spectrum antibiotic of tetracycline class which inhibits protein synthesis by targeting the 30S ribosome subunit. It has been used in human medicine as well as in veterinary medicine and agriculture.

Antibiotic; binds bacterial ribosomes to inhibit protein synthesis

Anti-MRSA agent 19 (Compound 1) is an antibiotic that exhibits activity against Staphylococcus aureus. It is active against 40 clinical isolates from the CDC, representing diverse bacterial species with various resistance factors, including resistance to vancomycin, aminoglycoside/tetracycline, and oxazolidinone (median MIC=4 μg/mL).

Please enquire for more information about Monensin methyl ester including the price, delivery time and more detailed product information at the technical inquiry form on this page

Cefazolin is a semi-synthetic, non-beta lactam antibiotic used for the treatment of a variety of bacterial infections. It inhibits cell wall synthesis by binding to one or more of penicillin-binding proteins (PBPs), which are bacterial transpeptidases that crosslink peptidoglycan strands. Cefazolin binds to PBPs present on the surface of all Gram-negative bacteria as well as many Gram-positive bacteria. It is not effective against methicillin-resistant staphylococcus and MRSA unless combined with another antibiotic such as vancomycin or flucloxacillin. A study showed that cefazolin can decrease inflammation and tumor necrosis factor-beta levels in pregnant women with systemic inflammatory disease. It has been tested in the development of an anti-inflammatory agent for use in patients with autoimmune diseases such as rheumatoid arthritis and lupus erythe.

Amoxicillin trihydratesemi-synthetic antibiotic related to Penicillin which has antibacterial poperties. It is used for treatment of a variety of bacterial infections. It is used as a pharmaceutical product as a antibiotic agent, anti-infective drug raw materials. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Moenomycin complex is a mixture of moenomycins A, A12, C1, C3 and C4, which are antibiotics from several Streptomyces that directly inhibit bacterial PGTs.

Saroaspidin B is a dimeric form of a biphenyl triphenol, characterized as an antibiotic compound.

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Aminothiazole (2-Aminothiazole), a thyroid inhibitor, displays antibacterial activity.

Applications Brombuterol was detected as a β-agonist residue in foodstuffs sourced from animal meats. References Shelver, W., et al.: J. Immunoassay, 21, 1 (2000), Smith, D., et al.: J. Anim. Sci., 80, 1240 (2002), Shelver, W., et al.: J. Agric. Food Chem., 51, 3715 (2003),

Cyproconazole is used to inhibit demeythylation in fungal sterol synthesis. And it is used on greenhouse and field-grown roses and as a wood preservative, surface application or pressure treatment of wood for above-ground uses, including siding, plywood, millwork, shingles, lumber. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications A 16-membered ring macrolide antibiotic used in ophthalmology as well as other medical fields. References Matsui, K. et al.: J. Inter. Cytokin Res., 24, 197 (2004); Schmalreck, A.F. et al.: Antiinfect Drugs Chemother., 14, 225 (1996); Tokuda, H. et al.: Chemother., 21, 887 (1973);

Cephradine is a first-generation cephalosporin antibiotic with action on bacterial cell wall synthesis and is used for treating bacterial infections like urinary tract infections, respiratory infections, and skin infections.

Isavuconazole (RO-0094815) is an azole antifungal with MICs 0.002-0.5 mg/liter against C. albicans to C. glabrata.

A frequently used lab reagent that inhibits fungal growth by targeting protein synthesis. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Geldanamycin binds to and inhibits the cytosolic chaperone functions of heat shock protein 90 (HSP90). HSP90 maintains the stability and functional shape of many oncogenic signaling proteins. It interferes with conformational maturation of proteins and the cellular stress response. In addition, it is a potent inhibitor of the nuclear hormone receptor family. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications A labelled metabolite of Nitrofuran.Environmental contaminants; Food contaminants; Heat processing contaminants Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Elliott, J., et al.: J. Pharm. Pharmacol., 41, 37 (1989), Tribalat, L., et al.: Anal. Bioanal. Chem., 386, 2168 (2006), Chu, P., et al.: J. Agric. Food Chem., 55, 2129 (2007),

Phleomycin is one of the anticancer glycopeptide antibiotics which cause DNA cleavage.

Cloxacillin sodium monohydrate (Cloxacillin Sodium) is the sodium salt of cloxaclliin, a semisynthetic beta-lactamase resistant penicillin antibiotic with

Please enquire for more information about Cyclosporin L including the price, delivery time and more detailed product information at the technical inquiry form on this page

Piericidin A is a microbial metabolite, specifically a type of polyketide, which is derived from the bacterium of the genus Streptomyces. This compound acts as an electron transport chain inhibitor by specifically binding to the ubiquinone binding site of complex I (NADH:ubiquinone oxidoreductase) in mitochondria. This mode of action results in the disruption of ATP production through oxidative phosphorylation. Piericidin A has been extensively studied for its role in biochemical research, particularly in the investigation of cellular respiration and energy metabolism. Its ability to modulate oxidative phosphorylation makes it valuable in studies related to mitochondrial function and dysfunction. Furthermore, its inhibitory properties provide insights into the mechanisms of neurodegenerative diseases where mitochondrial impairment is a known factor. Researchers also explore its potential application in developing novel therapeutic strategies against pathogens and cancer cells that rely on aerobic respiration.

Tetracycline is used for treatment of chronic inflammatory cells. Tetracycline derivatives induce apoptosis in osteoclasts, Jurkat T lymphocyte cells and in cultured monocytes and macrophages. It is a compound that has been shown to induce apoptosis in various cells. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Arginomycin is a nucleoside antibiotic (antibiotic) that inhibits the growth of Gram-positive bacteria and fungi in vitro.

Broad-spectrum antibiotic; bacterial cell wall biogenesis inhibitor

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications Third generation, orally active cephalosporin antibiotic. Antibacterial. References Wise, R., et al.: Antimicrob. Agents Chemother., 29, 1067 (1986), Hirai, S., et al.: Jpn. J. Antibiot., 39, 958 (1986), Lentz, K., et al.: Int. J. Pharm., 200, 41 (2000), Takagi, T., et al.: Mol. Pharmaceutics, 3, 631 (2006), Gu, C., et al.: Pharm. Res., 24, 1118 (2007),

Cefiderocol is a siderophore cephalosporin antibiotic with action on bacterial cell wall synthesis, particularly targeting multidrug-resistant gram-negative bacteria and is used for treating complicated urinary tract infections and hospital-acquired pneumonia.

Cloxacillin benzathine is a beta-lactam antibiotic, which is synthesized from Penicillium fungi-derived penicillins. It acts by inhibiting bacterial cell wall synthesis. The mechanism involves the irreversible inhibition of penicillin-binding proteins (PBPs). This disruption in the bacterial cell wall structure ultimately leads to cell lysis and death. Cloxacillin benzathine is primarily used for the treatment of infections caused by penicillinase-producing staphylococci. It is particularly effective against Gram-positive bacteria, including Staphylococcus aureus, which are resistant to penicillin G. The depot formulation allows for sustained release and longer activity in the body. This makes it an invaluable tool in the management of bone, skin, and respiratory infections where persistent bactericidal action is desired.

Aminoglycoside antibiotics

Cefatrizine propylene glycol is a cephalosporin antibiotic with action against gram-positive and gram-negative bacteria and is used for treating respiratory and skin infections.

Neomycin B is an aminoglycoside antibiotic, which is derived from the bacterium *Streptomyces fradiae*. It exerts its antibacterial effects by binding to the 30S subunit of bacterial ribosomes, leading to the inhibition of protein synthesis. This binding disrupts the translation process, thereby preventing the growth and proliferation of bacteria. Neomycin B is effective against a wide range of Gram-negative and some Gram-positive bacteria, making it a valuable tool in both medical and research settings. The primary uses of Neomycin B include its application in topical formulations to prevent or treat skin infections. It is also used as an oral treatment to reduce the risk of intestinal bacterial infections before surgery or in hepatic encephalopathy management. In scientific research, Neomycin B may be used in cell culture media to maintain bacterial contamination-free environments. Its mechanism of action and broad-spectrum effectiveness continue to make it a subject of study within microbiology and pharmacology for further therapeutic developments.

Trovafloxacin mesylate is a synthetic antibiotic belonging to the fluoroquinolone class, which is derived from chemical synthesis processes rather than natural sources. The mode of action of trovafloxacin mesylate involves the inhibition of bacterial enzymes DNA gyrase and topoisomerase IV. These enzymes are essential for DNA replication, repair, and transcription within the bacterial cell. By inhibiting these enzymes, trovafloxacin mesylate disrupts bacterial DNA processes, leading to cell death and exerting its antibacterial effects. Trovafloxacin mesylate has been used to treat a variety of bacterial infections, including those affecting the respiratory tract, urinary tract, and skin. Its broad-spectrum activity makes it effective against both Gram-positive and Gram-negative bacteria. However, due to associated risks such as severe hepatotoxicity, its use has been limited and is subject to stringent regulations. Trovafloxacin mesylate serves as an important example in the field of antibiotic research regarding the balance between antibiotic efficacy and safety.

Valinomycin, is used as a potassium ionophore shown to induce cell death. Due to the ion-selective nature of valinomycin, it is used in ion-selective electrodes. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Faropenem sodium hydrate is a hydrated form of faropenem sodium with similar action and applications as faropenem sodium hemipentahydrate.

Orbifloxacin is a fluoroquinolone antibiotic with action on bacterial DNA gyrase and topoisomerase IV and is used for treating bacterial infections in veterinary medicine.

Antibiotics nesoi

Kanamycin is a broad spectrum antibiotic active against both gram-positive and gram-negative bacteria. It is used to treat severe infections including sepsis and tuberculosis. It  is another selection agent commonly used to screen bacteria, such as, E. coli, but also suitable for yeast specie,s such as, P. pastoris and plastid transformation of tobacco.