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Molecular Biology

Cosmo Bio USA provides a comprehensive selection of Molecular Biology reagents and tools supporting applications ranging from fundamental gene analysis to specialized molecular techniques. Cosmo Bio Co., Ltd. leads with a broad range of high-quality reagents and kits, including PCR and RT-PCR systems, nucleic acid purification tools, and gene expression analysis reagents—streamlining critical workflows with proven reliability. Labiskoma adds precision with specialized nucleic acid amplification and detection kits for rapid, accurate molecular diagnostics. Yeastern Biotech boosts cloning success with a powerful selection of high-efficiency competent cells, offering both chemically and electrocompetent E. coli strains ideal for library construction, transformation, and plasmid propagation.

Toyobo enhances the lineup with high-fidelity DNA polymerases, thermostable enzymes, and reverse transcriptases—delivering accuracy and consistency in PCR, RT-PCR, and qPCR workflows. Primary Cell Co., Ltd. (PMC) contributes key molecular biology reagents tailored for gene expression studies, while BQC offers enzymes, buffers, and oxidative stress reagents essential for studying DNA damage and redox biology. Together, these validated, performance-driven tools enable researchers to achieve reproducible results and accelerate discoveries in cloning, diagnostics, gene expression, and beyond. Cosmo Bio USA empowers academic, clinical, and industrial labs with the solutions they need to drive innovation in molecular biology.

 

  • ECOS 9-5 JM109 Competent Cells (>=5 x10^8 cfu/μg)

    Yeastern Biotech

    ECOS 9-5 JM109 Competent Cells (>=5 x10^8 cfu/μg)

    Catalog No.(s): YSN-FYE709-10VL, YSN-FYE709-80VL

    Product DescriptionJM109, a K strain bacterium, carries mutations in recA and endA, leading to minimal recombination and improved quality of isolated plasmid DNA. In addition, the cells carry the F’ episome which allows blue/white...

    $254.00 - $1,114.00
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  • ECOS 9-5 JM109 Competent Cells (>=1 x10^8cfu/μg)

    Yeastern Biotech

    ECOS 9-5 JM109 Competent Cells (>=1 x10^8cfu/μg)

    Catalog No.(s): YSN-FYE708-10VL, YSN-FYE708-80VL

    Product DescriptionJM109, a K strain bacterium, carries mutations in recA and endA, leading to minimal recombination and improved quality of isolated plasmid DNA. In addition, the cells carry the F’ episome which allows blue/white...

    $143.00 - $629.00
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  • ECOS X DH5α Competent Cells (>= 5 x 10^9cfu/μg)

    Yeastern Biotech

    ECOS X DH5α Competent Cells (>= 5 x 10^9cfu/μg)

    Catalog No.(s): YSN-FYE610-10VL, YSN-FYE610-80VL

    Product DescriptionA superior DH5a strain with a transformation efficiency similar to that of electroporation(~1010 cfu/ug) ! ECOS™ X can be utilized for applications which require very high transformation efficiencies, such as of genomic...

    $317.00 - $1,392.00
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  • ECOS 101 DH5α Competent Cells (>=1x10^8 cfu/μg)

    Yeastern Biotech

    ECOS 101 DH5α Competent Cells (>=1x10^8 cfu/μg)

    Catalog No.(s): YSN-FYE607-10VL, YSN-FYE607-80VL

    Product DescriptionDH5α is the most popular E. coli strain for everyday cloning applications. It supports blue/white screening for easy selection of recombinant DNA with X-Gal. In addition, DH5α carries recA1 mutation that...

    $143.00 - $629.00
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  • ECOS 10B DH10B Competent Cells (>=1x10^8 cfu/μg)

    Yeastern Biotech

    ECOS 10B DH10B Competent Cells (>=1x10^8 cfu/μg)

    Catalog No.(s): YSN-FYE508-10VL, YSN-FYE508-80VL

    Product DescriptionDH10B is an MC1061 derivative. This strain was designed for the propagation of large insert DNA library clones. It is used extensively, taking advantage of properties such as high DNA transformation efficiency and maintenance of large...

    $143.00 - $629.00
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  • ECOS 21 BL21(DE3) Competent Cells (>=2x10^7 cfu/μg)

    Yeastern Biotech

    ECOS 21 BL21(DE3) Competent Cells (>=2x10^7 cfu/μg)

    Catalog No.(s): YSN-FYE207-10VL, YSN-FYE207-40VL

    Product DescriptionThis strain provides high levels of protein expression. This strain carries the lambda DE3 lysogen, which expresses T7 RNA polymerase from the lacUV5 promoter by isopropyl-1-thio-ß-D-galactopyranoside (IPTG) induction. The...

    $122.00 - $335.00
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  • rAAV2_mOaPAC360

    Cosmo Bio

    rAAV2_mOaPAC360

    Catalog No.(s): HPK-BD1180, HPK-BD1180A

    Cosmo Bio USA is proud to introduce two new photoactivated adenylyl cyclases from Japanese photonics pioneer Hamamatsu: mOaPAC360 and mOaPAC348. ...

    Mammalian codon-optimized, de-repressed mutants mOaPAC360 and mOaPAC348 are available either in an ampicillin selectable expression plasmid or a serotype 2 adeno-associated viral (AAV) vector with RFP (λex 555nm/λem 584nm) as an expression marker....

    $2,070.00 - $5,455.00
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  • rAAV2_mOaPAC348

    Cosmo Bio

    rAAV2_mOaPAC348

    Catalog No.(s): HPK-BD1179, HPK-BD1179A

    Cosmo Bio USA is proud to introduce two new photoactivated adenylyl cyclases from Japanese photonics pioneer Hamamatsu: mOaPAC360 and mOaPAC348. ...

    Mammalian codon-optimized, de-repressed mutants mOaPAC360 and mOaPAC348 are available either in an ampicillin selectable expression plasmid or a serotype 2 adeno-associated viral (AAV) vector with RFP (λex 555nm/λem 584nm) as an expression marker....

    $1,818.00 - $5,455.00
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  • pmOaPAC360

    Cosmo Bio

    pmOaPAC360

    Catalog No.(s): HPK-BD1178, HPK-BD1178A

    Cosmo Bio USA is proud to introduce two new photoactivated adenylyl cyclases from Japanese photonics pioneer Hamamatsu: mOaPAC360 and mOaPAC348. ...

    Mammalian codon-optimized, de-repressed mutants mOaPAC360 and mOaPAC348 are available either in an ampicillin selectable expression plasmid or a serotype 2 adeno-associated viral (AAV) vector with RFP (λex 555nm/λem 584nm) as an expression marker....

    $1,617.00 - $4,848.00
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  • pmOaPAC348

    Cosmo Bio

    pmOaPAC348

    Catalog No.(s): HPK-BD1177, HPK-BD1177A

    Cosmo Bio USA is proud to introduce two new photoactivated adenylyl cyclases from Japanese photonics pioneer Hamamatsu: mOaPAC360 and mOaPAC348....

    Mammalian codon-optimized, de-repressed mutants mOaPAC360 and mOaPAC348 are available either in an ampicillin selectable expression plasmid or a serotype 2 adeno-associated viral (AAV) vector with RFP (λex 555nm/λem 584nm) as an expression marker....

    $1,617.00 - $4,848.00
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  • THUNDERBIRD Probe One-Step qRT-PCR

    Cosmo Bio

    THUNDERBIRD Probe One-Step qRT-PCR

    Catalog No.(s): TYB-QRZ-101

    Product DescriptionTHUNDERBIRD™ Probe One-step qRT-PCR Kit is a one-step real-time reverse-transcription polymerase chain reaction (RT-PCR) kit using the highly efficient reverse transcriptase "ReverTra Ace™" and Tth DNA polymerase...

    $454.00
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  • ReverTra Ace qPCR RT Master Mix with gDNA Remover

    Cosmo Bio

    ReverTra Ace qPCR RT Master Mix with gDNA Remover

    Catalog No.(s): TYB-FSQ-301

    Product DescriptionDocuments & Links Documents & Links for ReverTra Ace qPCR RT Master Mix with gDNA Remover Manual ReverTra Ace qPCR RT Master Mix with gDNA Remover Manual Vendor Page ReverTra Ace qPCR RT Master Mix with gDNA Remover at Cosmo...

    $550.00
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  • ReverTra Ace qPCR RT Master Mix

    Cosmo Bio

    ReverTra Ace qPCR RT Master Mix

    Catalog No.(s): TYB-FSQ-201

    Product DescriptionDocuments & Links Documents & Links for ReverTra Ace qPCR RT Master Mix Manual ReverTra Ace qPCR RT Master Mix Manual Vendor Page ReverTra Ace qPCR RT Master Mix at Cosmo Bio Documents & Links for ReverTra Ace qPCR RT...

    $523.00
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  • Schiff Reagent Solution

    BQC REDOX Technologies

    Schiff Reagent Solution

    Catalog No.(s): BQC-KH07013-125, BQC-KH07013-500

    Product DescriptionPurpose of Use This reagent is used in the staining technique PAS. Periodic Acid Schiff is used to demonstrate simple polysaccharides, neutral muco-polisaccharides, mucoproteins, and glicolipids. It can be used together with...

    $58.00 - $136.00
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  • SARS-CoV-2 Assay Reagent 2

    CUSABIO

    SARS-CoV-2 Assay Reagent 2

    Catalog No.(s): CSB-DC701B-2-50, CSB-DC701B-2-100

    Product Description Main components: Test strip + BufferDocuments & Links

    $399.00 - $718.00
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  • L-Glutamate Oxidase 25

    Cosmo Bio

    L-Glutamate Oxidase 25

    Catalog No.(s): YMS-80049

    L-Glutamate Oxidase 25 is 25 units of E. coli-produced, recombinant L-glutamate oxidase....

    L-glutamate oxidase and its substrate L-glutamate play important roles in the fields of food production and clinical biochemistry....

    $603.00
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  • rTth DNA Polymerase Buffer

    Cosmo Bio

    rTth DNA Polymerase Buffer

    Catalog No.(s): TYB-TTH-3R

    Product DescriptionFor PCR Product SpecificationsDocuments & Links Documents & Links for rTth DNA Polymerase Buffer Vendor Page rTth DNA Polymerase Buffer at Cosmo Bio Documents & Links for rTth DNA Polymerase Buffer Vendor Page rTth...

    $15.00
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  • rTth DNA Polymerase Dilution Buffer

    Cosmo Bio

    rTth DNA Polymerase Dilution Buffer

    Catalog No.(s): TYB-TTH-3D

    Product DescriptionFor PCR Product SpecificationsDocuments & Links Documents & Links for rTth DNA Polymerase Dilution Buffer Vendor Page rTth DNA Polymerase Dilution Buffer at Cosmo Bio Documents & Links for rTth DNA Polymerase Dilution...

    $15.00
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  • rTth DNA Polymerase

    Cosmo Bio

    rTth DNA Polymerase

    Catalog No.(s): TYB-TTH-301

    Product DescriptionFor PCR、RT-PCR, dye-deoxy sequencing, creation of double stranded DNA by origonucleotide as primers Tth DNA polymerase is a thermostable DNA polymerase derived from the thermophilic bacteria Thermus thermophilus (Tth) HB8. The enzyme...

    $206.00
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  • ReverTra Ace

    Cosmo Bio

    ReverTra Ace

    Catalog No.(s): TYB-TRT-101, TYB-TRT-101X5, TYB-TRT-101X10

    Product Description Product SpecificationsDocuments & Links Documents & Links for ReverTra Ace Vendor Page ReverTra Ace at Cosmo Bio Documents & Links for ReverTra Ace Vendor Page ReverTra Ace

    $268.00 - $1,870.00
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  • Thermo T7 RNA Polymerase Buffer

    Cosmo Bio

    Thermo T7 RNA Polymerase Buffer

    Catalog No.(s): TYB-TRL-2B

    Product Description Product SpecificationsDocuments & Links Documents & Links for Thermo T7 RNA Polymerase Buffer Vendor Page Thermo T7 RNA Polymerase Buffer at Cosmo Bio Documents & Links for Thermo T7 RNA Polymerase Buffer Vendor...

    $16.00
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  • Thermo T7 RNA Polymerase (TT7) (Highly concentrated)

    Cosmo Bio

    Thermo T7 RNA Polymerase (TT7) (Highly concentrated)

    Catalog No.(s): TYB-TRL-252

    Thermo T7 RNA Polymerase (TT7) (Highly concentrated) is 50,000 units of an E. coli-produced, genetically modified T7 RNA polymerase offered at 50U/ul (with 10X reaction buffer)....

    It features an ~85-minute half-life at its optimal reaction temperature of ~50°C....

    $1,100.00
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  • Thermo T7 RNA Polymerase (TT7)

    Cosmo Bio

    Thermo T7 RNA Polymerase (TT7)

    Catalog No.(s): TYB-TRL-201X5

    Product DescriptionTo create RNA proble of high indication. To create precursor for RNA splicing reaction. To create mRNA with Cap analog as a primer. To create mRNA for in vitro Translation Thermo T7 RNA polymerase is a genetically modified T7 RNA...

    $754.00
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  • Thermo T7 RNA Polymerase ((TT7))

    Cosmo Bio

    Thermo T7 RNA Polymerase ((TT7))

    Catalog No.(s): TYB-TRL-201

    Product DescriptionTo create RNA proble of high indication. To create precursor for RNA splicing reaction. To create mRNA with Cap analog as a primer. To create mRNA for in vitro Translation Thermo T7 RNA polymerase is a genetically modified T7 RNA...

    $189.00
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  • T4 DNA Polymerase Buffer

    Cosmo Bio

    T4 DNA Polymerase Buffer

    Catalog No.(s): TYB-TPL-1R

    Product DescriptionBuffer for T4 DNA Polymerase Product SpecificationsDocuments & Links Documents & Links for T4 DNA Polymerase Buffer Vendor Page T4 DNA Polymerase Buffer at Cosmo Bio Documents & Links for T4 DNA Polymerase...

    $16.00
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  • T4 DNA Polymerase

    Cosmo Bio

    T4 DNA Polymerase

    Catalog No.(s): TYB-TPL-101, TYB-TPL-101X5

    Product Description [Source: _III_Escherichia coli B_IIII_ infected with phage T4.Reaction: DNA$$OH$$$ + ndNTP → DNA(pdN)$$n$$$ + nPPiProduct SpecificationsDocuments & Links Documents & Links for T4 DNA...

    $189.00 - $754.00
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  • Anti Taq high (Monoclonal Antibody for Hot Start PCR)

    Cosmo Bio

    Anti Taq high (Monoclonal Antibody for Hot Start PCR)

    Catalog No.(s): TYB-TCP-101, TYB-TCP-101X5

    Product Description Product SpecificationsDocuments & Links Documents & Links for Anti Taq high (Monoclonal Antibody for Hot Start PCR) Datasheet tyb-tcp-101_anti-taq-high-pab_datasheet.pdf Documents & Links for Anti Taq high (Monoclonal...

    $252.00 - $1,006.00
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  • 25mM MgCl2 for rTaq DNA Polymerase/KOD DNA Polymerase

    Cosmo Bio

    25mM MgCl2 for rTaq DNA Polymerase/KOD DNA Polymerase

    Catalog No.(s): TYB-TAP-2S

    Product DescriptionFor PCR Product SpecificationsDocuments & Links Documents & Links for 25mM MgCl2 for rTaq DNA Polymerase/KOD DNA Polymerase Vendor Page 25mM MgCl2 for rTaq DNA Polymerase/KOD DNA Polymerase at Cosmo Bio Documents & Links...

    $15.00
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  • rTaq DNA Polymerase (Mg Contained Type) Buffer

    Cosmo Bio

    rTaq DNA Polymerase (Mg Contained Type) Buffer

    Catalog No.(s): TYB-TAP-2M

    Product DescriptionFor PCR Product SpecificationsDocuments & Links Documents & Links for rTaq DNA Polymerase (Mg Contained Type) Buffer Vendor Page rTaq DNA Polymerase (Mg Contained Type) Buffer at Cosmo Bio Documents & Links for rTaq DNA...

    $15.00
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  • rTaq DNA Polymerase (Mg Separate Type) Buffer

    Cosmo Bio

    rTaq DNA Polymerase (Mg Separate Type) Buffer

    Catalog No.(s): TYB-TAP-2B

    Product DescriptionFor PCR Product SpecificationsDocuments & Links Documents & Links for rTaq DNA Polymerase (Mg Separate Type) Buffer Vendor Page rTaq DNA Polymerase (Mg Separate Type) Buffer at Cosmo Bio Documents & Links for rTaq DNA...

    $15.00
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  • rTaq DNA Polymerase (Mg Contained Type)

    Cosmo Bio

    rTaq DNA Polymerase (Mg Contained Type)

    Catalog No.(s): TYB-TAP-211

    Product DescriptionFor PCR A recombinant type enzyme which is cloned with Thermus aquaticus YT-1. Depending on the purpose of the experiment, the reaction buffer can be selected from either the Mg separate type or the Mg contained/included type.Product...

    $131.00
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  • rTaq DNA Polymerase (Mg Separate Type)

    Cosmo Bio

    rTaq DNA Polymerase (Mg Separate Type)

    Catalog No.(s): TYB-TAP-201

    Product DescriptionFor PCR A recombinant type enzyme which is cloned with Thermus aquaticus YT-1. Depending on the purpose of the experiment, the reaction buffer can be selected from either the Mg separate type or the Mg contained/included type.Product...

    $131.00
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