Shop All Antibiotics & Antimycotics

Puromycin Dihydrochloride (Gibco™)

Puromycin Dihydrochloride is an aminonucleoside antibiotic produced by Streptomyces alboniger. Puromycin works by inhibiting peptidyl transfer on both prokaryotic and eukaryotic ribosomes; resistance is conferred by the expression of the pac gene.

Puromycin is widely used in cell biology as a selection antibiotic in mammalian cell culture systems. The recommended working concentration ranges from 0.2–5.0 µg/mL, although it can be toxic to eukaryotic cells at concentrations as low as 1 µg/mL. Gibco® Puromycin Dihydrochloride is supplied at 10 mg/mL in 20 mM HEPES buffer (pH 7.2–7.5).

Other Choices and More Information
We offer a wide range of antibiotics and antimycotics in both powder and liquid formats.

See the complete list, or find products for:
Contamination control
Eukaryotic and bacterial selection

See recommendations for working concentrations for selection antibiotics.

Learn more about the use of antibiotics and antimycotics in cell culture, and review guidelines for decontaminating cultures.

FR-31564 (Fosmidomycin, Sodium Salt) (Invitrogen™)

The phosphonate antibiotic FR-31564 (fosmidomycin) is an effective antimalarial agent that functions by blocking a mevalonate-independent pathway of isoprene synthesis. The antibiotic activity of FR-31564 is potentiated by glucose 1-phosphate. FR-31564 is also active against a variety of gram-negative bacteria.

Blasticidin S HCl (10 mg/mL) (Gibco™)

Blasticidin S is a nucleoside antibiotic isolated from Streptomyces griseochromogenes. It is a potent inhibitor of protein synthesis in both prokaryotic and eukaryotic cells. Blasticidin S acts quickly by inhibiting peptide bond formation by the ribosome. Blasticidin S is used for the prevention of contamination of cell cultures. The recommended working concentration ranges from 2 to 20 µg/ml depending on the cell line. This product is provided as a solution at 10 mg/ml in 20 mM HEPES (pH 7.2-7.5). Life Technologies offers a variety of antibiotics and antimycotics for cell culture applications.

In addition, Blasticidin S is used as a bacterial selective antibiotic in the concentration range of 50–100 µg/ml. Resistance is conferred by expression of either one of two Blasticidin S deaminase genes: BSD (2) or bsr.These deaminases convert Blasticidin S to a nontoxic derivative. For selection purposes, the salt content of the LB medium must remain low (<90 mM) and the pH should not exceed 7.0 to maintain the activity of Basticidin S. Life Technologies also offers a variety of selection antibiotics.

Product Use

For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

cGMP Manufacturing
Gibco® Blasticidin S HCl is manufactured at a cGMP compliant facility located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards.

Hygromycin B (50 mg/mL) (Gibco™)

Hygromycin B is a water-soluble antibiotic purified from the bacterium Streptomyces hydroscopicus. Hygromycin B acts by binding to the 80S subunit of the bacterial ribosome and inhibiting protein synthesis. Gibco® Hygromycin B is used as a bacterial selection antibiotic in the concentration range of 200–500 µg/mL. This product is supplied as a 50 mg/mL solution.

Resistance to Hygromycin B is conferred by the E. coli hygromycin resistance gene (hyg or hph). Hygromycin B has a different mode of action than Geneticin®, Blasticidin S, or Zeocin™ selection reagents, making it an excellent choice for dual-selection experiments (see selection antibiotics).

Other Choices and More Information
We offer a wide range of antibiotics and antimycotics in both powder and liquid formats.

See the complete list, or find products for:
Contamination control
Eukaryotic and bacterial selection

See recommendations for working concentrations for selection antibiotics.

Learn more about the use of antibiotics and antimycotics in cell culture, and review guidelines for decontaminating cultures.

Penicillin-Streptomycin (5,000 U/mL) (Gibco™)

The antibiotics penicillin and streptomycin are used to prevent bacterial contamination of cell cultures due to their effective combined action against gram-positive and gram-negative bacteria. Penicillin was originally purified from the fungi Penicillium and acts by interfering directly with the turnover of the bacterial cell wall and indirectly by triggering the release of enzymes that further alter the cell wall. Streptomycin was originally purified from Streptomyces griseus. It acts by binding to the 30S subunit of the bacterial ribosome, leading to inhibition of protein synthesis and death in susceptible bacteria. This solution contains 5000 units/mL of penicillin and 5000 µg/mL of streptomycin.

We offer a wide range of antibiotics and antimycotics in both powder and liquid formats. See the complete list, or find products for:

Contamination control
Eukaryotic and bacterial selection

See recommended working concentrations for selection antibiotics.

Learn more about the use of antibiotics and antimycotics in cell culture and review guidelines for decontaminating cultures.

Streptomycin Sulfate (Gibco™)

Streptomycin Sulfate is a water-soluble antibiotic originally purified from Streptomyces griseus. Streptomycin Sulfate acts by binding to the 30S subunit of the bacterial ribosome leading to inhibition of protein synthesis and death in susceptible bacteria. Streptomycin Sulfate is highly active against gram-negative with some activity against gram-positive bacteria. Gibco® Streptomycin Sulfate is used alone or in combination with penicillin, an antibiotic highly active against gram-positive bacteria, for the prevention of bacterial contamination of cell cultures. The recommended working concentration ranges from 50 to 100 µg/ml. We offer a variety of antibiotics and antimycotics for cell culture applications.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Dual-Site cGMP Manufacturing
For supply chain continuity, we manufacture Gibco® Streptomycin Sulfate at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to ISO 13485, and are registered with the FDA as medical device manufacturers.

Gentamicin (50 mg/mL) (Gibco™)

Gentamicin sulfate is a water-soluble antibiotic originally purified from the fungus Micromonospora purpurea. Gentamicin acts by binding to the 30S subunit of the bacterial ribosome leading to inhibition of protein synthesis and death in susceptible bacteria. Gibco® Gentamicin is effective against a wide variety of gram-positive and gram-negative bacteria, and is used to prevent the contamination of cell cultures by bacteria. The recommended working concentration ranges from 0.5 to 50 µg /mL.

We offer a wide range of antibiotics and antimycotics in both powder and liquid formats.

Learn more about the use of antibiotics and antimycotics in cell culture and review guidelines for decontaminating cultures.

Dual-Site cGMP Manufacturing
Gibco® Gentamicin is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards. For supply chain continuity, we offer a comparable Gibco® Gentamicin product made in our Scotland facility (15750-037). This facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standard.

Geneticin™ Selective Antibiotic (G418 Sulfate), Powder (Gibco™)

Geneticin® Selective Antibiotic (G418 Sulfate) is produced by the bacterium Micromonospora rhodorangea and acts by binding the ribosome, thus inhibiting protein synthesis in both prokaryotic and eukaryotic cells. Resistance to Geneticin® Selective Antibiotic (G418 Sulfate) is conferred by the E. coli APH (3’) – I and APH (3’) – II resistance genes. Gibco® Geneticin® Selective Antibiotic (G418 Sulfate) is used as a selective antibiotic in the concentration range of 100 - 200 µg/ml for bacteria, or 200 – 500 µg/ml for most mammalian cells. This product is supplied as a powder and should be made into a stock solution of 10 – 50 mg/ml in water. We offer a variety of cell culture antibiotics for your convenience.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Dual site cGMP Manufacturing and Quality System
For supply chain continuity, we manufacture Gibco® Geneticin® Selective Antibiotic (G418 Sulfate) at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to ISO 13485, and are registered with the FDA as medical device manufacturers.

Blasticidin S HCl, powder (Gibco™)

Blasticidin S is a nucleoside antibiotic isolated from Streptomyces griseochromogenes. It is a potent inhibitor of protein synthesis in both prokaryotic and eukaryotic cells. Blasticidin S acts quickly by inhibiting peptide bond formation by the ribosome. Blasticidin S is used for the prevention of contamination of cell cultures. The recommended working concentration ranges from 2 to 20 µg/ml depending on the cell line. We offer a variety of antibiotics and antimycotics for cell culture applications.

In addition, Blasticidin S is used as a bacterial selective antibiotic in the concentration range of 50–100 µg/ml. Resistance is conferred by expression of either one of two Blasticidin S deaminase genes: BSD (2) or bsr.These deaminases convert Blasticidin S to a nontoxic derivative. For selection purposes, the salt content of the LB medium must remain low (<90 mM) and the pH should not exceed 7.0 to maintain the activity of Basticidin S. We also offer a variety of selection antibiotics.

Product Use

For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

cGMP Manufacturing
Gibco® Blasticidin S HCl is manufactured at a cGMP compliant facility located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards.

Zeocin™ Selection Reagent (Gibco™)

Gibco® Zeocin™ Selection Antibiotic is a formulation of phleomycin D1, a glycopeptide antibiotic produced by Streptomyces verticillus. Zeocin™ Selection Antibiotic acts by binding to and cleaving DNA, leading to cell death.

Zeocin™ Selection Antibiotic is used for selection of of mammalian, insect, yeast, bacterial, and plant cell cultures. It is used at a working concentration ranging between 50–400 µg/mL depending on the cell type. This product is supplied at 100 mg/mL in sterile water in 8 x 1.25 mL vials.

Other Choices and More Information
We offer a wide range of antibiotics and antimycotics in both powder and liquid formats.

See the complete list, or find products for:
Contamination control
Eukaryotic and bacterial selection

See recommendations for working concentrations for selection antibiotics.

Learn more about the use of antibiotics and antimycotics in cell culture, and review guidelines for decontaminating cultures.

Zeocin is a trademark of Invivogen.

Kanamycin Sulfate (Gibco™)

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. Gibco® Kanamycin is effective against a wide variety of gram-negative and some gram-positive bacteria, and is used for the prevention of bacterial contamination of cell cultures. We offer a variety of antibiotics and antimycotics for cell culture applications.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Dual-Site cGMP Manufacturing
For supply chain continuity, we manufacture Gibco® Kanamycin at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to ISO 13485, and are registered with the FDA as medical device manufacturers.

Gentamicin/Amphotericin Solution (Gibco™)

A sterile, concentrated (500×) antibiotic⁄antimycotic solution of gentamicin and amphotericin B (10 × 1 ml vials⁄pkg). One Gentamicin⁄Amphotericin Solution 10-Pak is enough to supplement ten 500 ml bottles of basal medium. Animal origin-free.

Penicillin-Streptomycin (10,000 U/mL) (Gibco™)

The antibiotics penicillin and streptomycin are used to prevent bacterial contamination of cell cultures due to their effective combined action against gram-positive and gram-negative bacteria. Penicillin was originally purified from the fungi Penicillium and acts by interfering directly with the turnover of the bacterial cell wall and indirectly by triggering the release of enzymes that further alter the cell wall. Streptomycin was originally purified from Streptomyces griseus. It acts by binding to the 30S subunit of the bacterial ribosome, leading to inhibition of protein synthesis and death in susceptible bacteria. This solution contains 10,000 units/mL of penicillin and 10,000 µg/mL of streptomycin in a 10 mM citrate buffer (for pH stability).

We offer a wide range of antibiotics and antimycotics in both powder and liquid formats. See the complete list, or find products for:
Contamination control
Eukaryotic and bacterial selection

See recommended working concentrations for selection antibiotics.

Learn more about the use of antibiotics and antimycotics in cell culture and review guidelines for decontaminating cultures.

Polymyxin B Sulfate (Gibco™)

Polymyxin B Sulfate is produced by Bacillus polymyxa. Polymyxin B Sulfate works by binding to the cellular membrane and interfering with its permeability. Gibco® Polymyxin B Sulfate is used for the prevention of bacterial contamination of cell cultures. This antibiotic is highly active against gram-negative bacteria. The recommended working concentration is 100 units/ml. We offer a variety of antibiotics and antimycotics for cell culture applications.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Gibco™ Amphotericin B (Gibco™)

Amphotericin B is the generic version of Fungizone. "Fungizone" is a trademark of E.R. Squibb & Sons, LLC. Amphotericin B prevents the growth of fungi by causing an increase in fungal plasma membrane permeability. Gibco Amphotericin B is used to prevent the contamination of cell cultures by yeast and multicellular fungi. Gibco Amphotericin B contains 250 µg of amphotericin B and 205 µg of sodium deoxycholate per mL of distilled water. The recommended working concentration ranges from 0.25 to 2.50 µg/mL.

We offer a wide range of antibiotics and antimycotics in both powder and liquid formats.

Learn more about the use of antibiotics and antimycotics in cell culture and review guidelines for decontaminating cultures.

Dual-site cGMP manufacturing
For supply chain continuity, we manufacture Gibco Amphotericin B at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to the ISO 13485 standard, and are registered with the FDA as medical device manufacturers.