Antibiotics

Compounds and substances that kill or slow the growth of bacteria; used as a means of preventing bacterial contamination in cell cultures; various formulations and volumes available.

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5,866 – 5,880 of 6,971 results

5,866

Alkali Scientific Ampicillin, Sodium Salt, 500 G

Ampicillin Sodium Salt is a high purity broad spectrum beta lactam antibiotic available in bulk powder form for laboratory and production scale applications. It inhibits bacterial cell wall synthesis, providing effective activity against many Gram positive and Gram negative organisms. This reagent is widely used in molecular biology for selective growth of recombinant cells and in microbiology for antibacterial studies. The powder format allows flexible preparation of stock solutions and large volume media formulations. It is suitable for research, fermentation processes, and routine laboratory use where consistent antibacterial activity and reliable experimental outcomes are required.

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5,867

Alkali Scientific Amphotericin B 250µg/mL Solution, 20 Milliliters

Amphotericin B is a polyene antifungal agent widely used in cell culture and microbiological applications to control fungal contamination. It targets fungal cell membranes by binding to ergosterol, creating pores that disrupt membrane integrity and lead to cell death. This selective mechanism makes it highly effective against yeasts and molds while minimizing effects on mammalian cells when used at appropriate concentrations. The solution format provides a convenient ready to use antifungal reagent for laboratory workflows. It is commonly added to cell culture media to prevent fungal growth and is widely used in research, pharmaceutical, and diagnostic laboratories where maintaining contamination free conditions is critical.

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5,868

Alkali Scientific Penicillin/Streptomycin/Neomycin Solution, 50 Milliliters

Penicillin/Streptomycin/Neomycin Solution (50mL) is an antibiotic solution designed for use in cell cultures, providing broad-spectrum protection against bacterial contamination. This solution contains penicillin and streptomycin, which are effective against a wide range of bacteria, as well as neomycin, an aminoglycoside antibiotic that targets additional bacterial species. It is commonly used in research to maintain sterile cell cultures, prevent bacterial overgrowth, and support cellular experiments. The 50mL bottle ensures that researchers have an adequate supply for multiple applications, including protein expression, gene regulation studies, and microbial testing, where bacterial contamination must be prevented to ensure accurate results.

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5,869

Alkali Scientific Geldanamycin, from Streptomyces hygroscopicus, 1 Mg

Geldanamycin, from Streptomyces hygroscopicus, is a well-known inhibitor of heat shock protein 90 (Hsp90), a key molecular chaperone involved in the stabilization of several client proteins. This 1 mg formulation is widely used in protein research, particularly in studies related to cancer and neurodegenerative diseases. By inhibiting Hsp90, Geldanamycin accelerates the degradation of client proteins, including those involved in oncogenic signaling. It is also being studied as a potential therapeutic agent in targeted cancer treatments. This compound is critical in research investigating the role of Hsp90 in protein folding, cell signaling, and disease progression.

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5,870

Alkali Scientific Amphotericin B, 5 G

Amphotericin B is a polyene antifungal agent widely used in laboratory research to prevent fungal contamination in cell culture and microbiological studies. It interacts with ergosterol in fungal membranes, creating pores that disrupt membrane integrity and result in cell death. This makes it highly effective against a broad range of fungi. In laboratory workflows, it is commonly used to maintain sterile culture environments and protect experimental samples from fungal overgrowth. Amphotericin B is also employed in antifungal susceptibility testing and research focused on fungal biology, providing consistent and reliable antifungal activity.

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5,871

Alkali Scientific Amphotericin B 250µg/mL Solution, 50 Milliliters

Amphotericin B solution is a ready to use antifungal preparation formulated for use in cell culture and microbiological applications. It functions by binding to ergosterol in fungal cell membranes, causing structural disruption and leakage of intracellular components, ultimately leading to fungal cell death. The pre prepared solution format allows easy and accurate addition to culture systems without the need for dissolution or preparation steps. It is commonly used to prevent fungal contamination in cell cultures, tissue cultures, and laboratory experiments. This solution is also suitable for antifungal research and studies requiring controlled inhibition of fungal growth.

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5,872

Alkali Scientific Actinomycin D [Actinomycin C1] [Dactinomycin], 10 Milligrams

Actinomycin D, also known as dactinomycin, is a potent antibiotic and transcription inhibitor widely used in molecular and cellular biology research. It binds to DNA at guanine cytosine rich regions, preventing RNA polymerase from progressing during transcription. This effectively blocks RNA synthesis and is commonly used to study gene expression, transcription regulation, and cellular responses to DNA damage. Actinomycin D is also used in cancer research due to its ability to inhibit rapidly dividing cells. The compound is widely applied in laboratory experiments requiring precise control of RNA synthesis and gene expression processes.

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5,873

Alkali Scientific Vancomycin Hydrochloride, 5 G

Vancomycin Hydrochloride is a potent antibiotic used to combat Gram-positive bacterial infections. This 5g powder form is used primarily in laboratory settings for research into antibacterial mechanisms and resistance. Vancomycin disrupts the synthesis of bacterial cell walls by binding to the precursors needed for their formation, leading to bacterial cell death. It is particularly effective against resistant pathogens, including MRSA (methicillin-resistant Staphylococcus aureus). This research-grade vancomycin is crucial in microbiology labs where it is used for in vitro testing, studying microbial resistance, and developing new treatment strategies for resistant infections.

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5,874

Apexbio Technology LLC Actinomycin D, 10mg. Cas: 50-76-0 MFCD: MFCD00005033. RNA polymerase inhibitor

IC50: Actinomycin D showed a concentration-dependent decrease of DNA repair activity with the IC50 of 0.42 M [1].Actinomycin D (dactinomycin), a member of actinomycines, which are a class of polypeptide antibiotics isolated from soil bacteria of the genus Streptomyces. Other sizes are available. Please inqury us for quote.

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5,875

Alkali Scientific Carbenicillin, Disodium Salt, 1 G

Carbenicillin Disodium Salt is a beta-lactam antibiotic used in microbiological research for its ability to inhibit bacterial cell wall synthesis. It interferes with the formation of peptidoglycan cross-links, leading to weakened cell walls and bacterial lysis. Carbenicillin is commonly used in molecular biology for the selection of plasmid-containing bacteria, particularly in cloning and transformation experiments. Compared to ampicillin, it offers improved stability and reduced satellite colony formation. This compound is widely applied in cell culture and microbiology laboratories for maintaining selective pressure in bacterial cultures and supporting studies involving gene expression, recombinant DNA technology, and antimicrobial activity.

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5,876

Apexbio Technology LLC Bestatin hydrochloride, 100mg. Cas: 65391-42-6 MFCD: MFCD00058004. Inhibitor of aminopeptidase N (APN)/CD13 and aminopeptidase B.

Bestatin hydrochloride, also known as Ubenimex, is an inhibitor of aminopeptidase B and N (APN)/CD13 [1].Bestatin, an antibiotic of microbial origin, is a potent inhibitor of some aminopeptidases which can be administered to cultured cells, intact animals and humans with low toxicity. Other sizes are available. Please inqury us for quote.

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5,877

Medchemexpress LLC Amifostine thiol | 31098-42-7 | MFCD00296912 | C5H14N2S | 10MG

Amifostine thiol (WR-1065) is the active free thiol metabolite of amifostine, provided as a research reagent for studies of radioprotection and cytoprotection. It modulates stress-response pathways, including p53 signaling, and is used to investigate DNA damage mitigation and cellular protection mechanisms.

High-purity reagent suitable for research applications.
Radioprotective and cytoprotective activity in cellular models.
Compatible with aqueous and polar solvent systems for assay use.
Defined chemical identity (C5H14N2S) for accurate traceability.
Available with certificate of analysis and safety documentation.

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5,878

Indofine Chemical Streptozotocin, 98%, 250 Mg

STREPTOZOTOCIN 250 MG, Products for Life Science, Streptozocin, N-(Methylnitrosocarbamoyl)-a-D-glucosamine, C8H15N3O7, MW: 265.22, 98+%, 18883-66-4, MFCD00006607

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5,879

Medchemexpress LLC Rapamycin (sirolimus) | 53123-88-9 | MFCD00867594 | 914.17 g·mol⁻¹ | C51H79NO13 | 100 MG

Rapamycin (sirolimus) (GMP) is a GMP-grade macrolide that binds FKBP12 and inhibits mTOR, used in research to modulate cell growth, autophagy, and signaling through the PI3K/Akt/mTOR pathway. It is intended for in vitro and preclinical applications where GMP-like material and batch consistency are required.

GMP-grade material suitable for research and preclinical use.
Targets mTOR via FKBP12 binding for pathway inhibition.
Molecular formula C51H79NO13 and molecular weight 914.17 g·mol⁻¹.
Provided as a solid for formulation or experimental preparation.
Useful for studies of cell proliferation, autophagy, and signaling modulation.

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5,880

eMolecules 13803-65-1 | Medchem Express | Anhydrotetracycline (hydrochloride) | 5mg | 572596602 | HY-118660 | MFCD00151453 | 462.88 | C22H23ClN2O7

Ambeed | 5-Fluorobenzo[c][125]thiadiazole | 250mg | 649782952 | A423839 | 17821-75-9 | MFCD00173946 | 154.160 | C6H3FN2S

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Medchemexpress LLC Amifostine thiol | 31098-42-7 | MFCD00296912 | C5H14N2S | 10MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Rapamycin (sirolimus) | 53123-88-9 | MFCD00867594 | 914.17 g·mol⁻¹ | C51H79NO13 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Amifostine thiol | 31098-42-7 | MFCD00296912 | C5H14N2S | 10MG

Medchemexpress LLC Rapamycin (sirolimus) | 53123-88-9 | MFCD00867594 | 914.17 g·mol⁻¹ | C51H79NO13 | 100 MG