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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1,891 – 1,905 of 7,042 results

1,891

Cayman Chemical 8Bu 3ynTNAD sodIum sal 700ug

A clickable form of NAD+; has been used in the determination of PARP1-, PARP2-, and PARP3-dependent genomic ADP-ribosylation sites and PARP7 protein substrates using analog-sensitive gatekeeper mutants of these proteins

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1,892

Alkali Scientific Streptomycin Sulfate, 250 G

Streptomycin Sulfate is an aminoglycoside antibiotic that inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit. This interaction disrupts the formation of the initiation complex and causes misreading of messenger RNA, preventing accurate translation of proteins and inhibiting bacterial growth. In microbiology laboratories, Streptomycin Sulfate is commonly used for selective bacterial isolation and antibiotic susceptibility testing. Researchers include it in culture media to suppress sensitive organisms while allowing the growth of resistant strains for analytical studies. Its consistent activity makes it useful for evaluating bacterial susceptibility patterns, investigating mechanisms of antibiotic resistance, and supporting microbiological assays that require reliable inhibition of bacterial protein synthesis.

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1,893

Medchemexpress LLC Hygromycin A | 6379-56-2 | 511.48 | 25 MG

Hygromycin A is a *Borrelia burgdorferi*-selective antibiotic that is also a spirochete-specific antibacterial. It contributes to gut health and is utilized in Lyme disease research. In vivo, Hygromycin A selectively eliminates *Borrelia burgdorferi* and positively influences gut microbiota composition, promoting eubiosis.

Selective antibiotic for *Borrelia burgdorferi*
Spirochete-specific antibacterial
Contributes to gut health
Used for Lyme disease research
Promotes eubiosis by impacting gut microbiota

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1,894

ILEX LIFE SCIENCES LLC PAN Biotech Paneticin G418 50 mg per ml cell culture selection antibiotic 20 ML 1/EA

PAN-Biotech Paneticin G418 (G418 Sulfate) 50 mg/ml Selective Antibiotic for Cell Culture 20 ml DESCRIPTION Paneticin G418 (G418 disulfate salt) is an aminoglycoside antibiotic similar in structure to gentamicin that is used for selection and maintenance of prokaryotic and eukaryotic cells transfected with an iNOS promoter construct and neomycin resistance gene It has a broad range of antibacterial activity and activity against protozoa cecal amoebiasis and helminths Optimal concentrations for selection and maintenance vary by cell lines (between 100 - 500 g/ml) Paneticin G418 is a suitable alternative to Geneticin Selective Antibiotic LIQUID/POWDER Liquid STERILE Yes STORAGE TEMPERATURE -20 C MANUFACTURER PAN-Biotech GmbH COUNTRY OF ORIGIN Germany USAGE Laboratory Research Use Only Not for use in diagnostic or therapeutic procedures

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1,895

Sigma Aldrich Fine Chemicals Biosciences Actinomycin D from Strepto25MG

Chemical structure peptide

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1,896

Ubpbio 100X RELAYTR Europium/Cy5 Ubiquitin Mix, 200 x 20 µl Reactions

Time resolved (TR)-FRET offers a sensitive, low background, stable and homogenous assay for determination of protein ubiquitination. Europium-ubiquitin and Cy5-ubiquitin are a pair of modified ubiquitin suitable for TR-FRET assays to assess formation of polyubiquitin chains, thereby reporting the activity of E2 and E3 enzymes in the reaction. The concentration and molar ratio of europium-ubiquitin and Cy5-ubiquitin in the RELAYTR Europium/Cy5 Ubiquitin Mix are optimized to achieve excellent signal-to-background ratio in ubiquitination reactions. Optimization of protein concentrations is often necessary to achieve a desirable signal-to-background ratio. Typical protein concentration ranges are: UbE1 (10-30 nM), E2 (25-250 nM) and E3 (10-250 nM).Reaction time is usually 1-3 hours in kinetic or end point assay.

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1,897

Gold Biotechnology Inc Hygromycin B 2.5 g

Hygromycin B is an aminoglycoside antibiotic isolated from Streptomyces hygroscopicus. It is commonly used to study protein synthesis. Aside from its efficacy against bacteria, fungi, and higher eukaryotic cells, hygromycin B is also an antiviral agent inhibiting translation upon selectively entering cells made permeable due to viral infection. It works as a standard selection antibiotic in gene experiments, especially for selection of hygromycin resistance gene transformed cells.

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1,898

Biotium NUCSPOT 594615 1000X 100UL

NUCSPOT 594615 1000X 100UL

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1,899

Alkali Scientific Carbenicillin, Disodium Salt, 5 G

Carbenicillin Disodium Salt is a beta-lactam antibiotic widely used in microbiology and molecular biology for selective inhibition of bacterial growth. It acts by disrupting cell wall synthesis, leading to bacterial cell death. Carbenicillin is frequently used in cloning and transformation experiments to maintain plasmid selection in bacterial cultures. It is more stable than ampicillin and reduces the formation of satellite colonies, ensuring clearer selection results. This compound is suitable for use in laboratory media and cell culture applications where consistent antibiotic activity is required. It supports research involving genetic engineering, microbial growth control, and studies of antibiotic resistance mechanisms.

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1,900

Alkali Scientific Hygromycin B Liquid, 5 Vials

Hygromycin B is an antibiotic used as a selective agent in cell culture systems, particularly for eukaryotic cell lines and microbial selection. It inhibits protein synthesis by binding to the ribosome and disrupting the elongation cycle, which leads to cell death. This liquid formulation, containing 5 vials of Hygromycin B, is commonly used in genetic research to select for cells that have been genetically modified to express resistance to this antibiotic. Hygromycin B is particularly useful in the selection of transfected mammalian cells, yeast, and bacteria, and is widely employed in gene therapy, cloning, and cellular studies.

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1,901

ILEX LIFE SCIENCES LLC PAN Biotech Hygromycin B Solution 50 mg per ml cell culture selection antibiotic 120 ML 1/EA

PAN-Biotech Hygromycin B Solution 50 mg/ml 6 x 20 ml DESCRIPTION PAN-Biotech Hygromycin B Solution 50 mg/ml is an antibiotic commonly used in cell culture and laboratory research applications Hygromycin B is produced by the bacterium Streptomyces hygroscopicus It is an aminoglycoside that kills bacteria fungi and other eukaryotic cells by inhibiting protein synthesis APPLICATION Hygromycin B is used for the selection and maintenance of prokaryotic and eukaryotic cells that contain the hygromycin resistance gene The resistance gene is a kinase that inactivates hygromycin B through phosphorylation Since the discovery of hygromycin-resistance genes hygromycin B has become a standard selection antibiotic in gene transfer experiments in many prokaryotic and eukaryotic cells STERILE Yes STORAGE TEMP 2 C - 8 C MANUFACTURER PAN-Biotech GmbH COUNTRY OF ORIGIN Germany USAGE Laboratory Research Use Only Not for use in diagnostic or therapeutic procedures

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1,902

Gold Biotechnology Inc Carbenicillin Solution

Carbenicillin is a member of the penicillin -lactam antibiotics However unlike most -lactams carbenicillin disodium is limited to primarily gram-negative bacteria including Pseudomonas aeruginosa and common enteric species It can be used in selection protocols and is often preferred over ampicillin due to its increased stability This allows for less contamination of unwanted bacterial colonies In addition carbenicillin has been used to regulate bacterial growth in plants yielding low regeneration frequencies It can be used in genetic transformation applications to select for AmpR transformed cells

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1,903

Gold Biotechnology Inc G-418 Sulfate 5 g

G-418 sulfate, also known as geneticin, is an aminoglycoside antibiotic similar in structure to gentamicin B1. It is commonly used in plant and mammalian cell culture as a selectable marker. It can be used to select for cells transformed with an iNOS promoter construct or neomycin resistance gene.

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1,904

Medchemexpress LLC RS 09 TFA | 99.9% | 805.80 | 10 MG

RS 09 TFA is an LPS peptide mimic and TLR4 agonist. It binds to TLR-4 and activates NF-κB. This compound can also function as an adjuvant in vivo, enhancing the antigen-specific immune response.

Stimulates TLR-4 and activates NF-κB in HEK-BLUETM-4 cells
Induces nuclear translocation of NF-κB and secretion of inflammatory cytokines in RAW264.7 cells
Enhances antigen-specific immune response in BALB/c mice
Molecular formula: C33H50F3N9O11
Appearance: Solid, white to off-white
Storage as powder: -80°C for 2 years, -20°C for 1 year
Storage in solvent: -80°C for 6 months, -20°C for 1 month (sealed, away from moisture)

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1,905

Alkali Scientific Geldanamycin, from Streptomyces hygroscopicus, 5 Mg

Geldanamycin is a heat shock protein 90 (Hsp90) inhibitor used extensively in protein research to explore the molecular mechanisms of cell stress, protein folding, and cancer development. This 5 mg formulation, derived from Streptomyces hygroscopicus, inhibits Hsp90, leading to the destabilization and degradation of various oncogenic proteins. The compound has shown promise in clinical trials as a potential anti-cancer agent due to its ability to disrupt cellular pathways critical for tumor growth and survival. Geldanamycin is also studied in neurodegenerative disease research, where it helps elucidate the role of protein misfolding in disease progression.

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Medchemexpress LLC Hygromycin A | 6379-56-2 | 511.48 | 25 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ubpbio 100X RELAYTR Europium/Cy5 Ubiquitin Mix, 200 x 20 µl Reactions Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC RS 09 TFA | 99.9% | 805.80 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Hygromycin A | 6379-56-2 | 511.48 | 25 MG

Ubpbio 100X RELAYTR Europium/Cy5 Ubiquitin Mix, 200 x 20 µl Reactions

Medchemexpress LLC RS 09 TFA | 99.9% | 805.80 | 10 MG