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Molecular Biology

Cosmo Bio USA offers a comprehensive and expertly curated Molecular Biology portfolio designed to power everything from foundational gene analysis to advanced molecular engineering. 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.

 

  • 10x A-attachment Mix

    Cosmo Bio

    10x A-attachment Mix

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

    Convenient TA Cloning System for PCR Products Documents & Links for 10x A-attachment Mix Vendor Page 10x A-attachment Mix at Cosmo Bio Documents & Links for 10x A-attachment Mix Vendor Page 10x A-attachment Mix

    $189.00
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  • RNase Inhibitor, Recombinant

    Cosmo Bio

    RNase Inhibitor, Recombinant

    Catalog No.(s): TYB-SIN-201, TYB-SIN-201X5

    Documents & Links for RNase Inhibitor, Recombinant Datasheet tyb-sin-201_rnase-inhibitor-recombinant_datasheet.pdf Vendor Page RNase Inhibitor, Recombinant at Cosmo Bio Documents & Links for RNase Inhibitor,...

    $158.00 - $629.00
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  • RNA-Direct SYBR Green Realtime PCR Master Mix

    Cosmo Bio

    RNA-Direct SYBR Green Realtime PCR Master Mix

    Catalog No.(s): TYB-QRT-201, TYB-QRT-201X5

    For real time PCR This product is a 2 x Master Mix for "1-step real-time PCR" using a thermostable DNA polymerase derived from Thermus thermophilus (Tth) HB81). Tth DNA polymerase exhibits reverse transcriptase activity in the presence of Mn2+ ions...

    $454.00 - $2,061.00
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  • RNA-Direct Realtime PCR Master Mix

    Cosmo Bio

    RNA-Direct Realtime PCR Master Mix

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

    For real time PCR This product is a 2 x Master Mix for "1-step real-time PCR" using a thermostable DNA polymerase derived from Thermus thermophilus (Tth) HB81). Tth DNA polymerase exhibits reverse transcriptase activity in the presence of Mn2+ ions...

    $454.00 - $2,061.00
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  • THUNDERBIRD SYBR qPCR Mix

    Cosmo Bio

    THUNDERBIRD SYBR qPCR Mix

    Catalog No.(s): TYB-QPS-201T, TYB-QPS-201, TYB-QPS-201X5

    For real time PCR THUNDERBIRD® SYBR® qPCR Mix is a highly efficient 2x Master Mix for real-time PCR using SYBR® Green I. The master mix contains all required components, except ROX reference dye and primers (50x ROX reference dye is individually...

    $118.00 - $1,829.00
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  • THUNDERBIRD Probe qPCR Mix

    Cosmo Bio

    THUNDERBIRD Probe qPCR Mix

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

    For real time PCR THUNDERBIRD® qPCR® Mix is a highly effective master mix (2 x concentration) for realtime PCR which has been developped with Taq DNA polymerase as a base.THUNDERBIRD®Probe qPCR Mix is a highly efficient 2x Master Mix for real-time PCR...

    $118.00 - $1,829.00
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  • SYBR Green Realtime PCR Master Mix-Plus

    Cosmo Bio

    SYBR Green Realtime PCR Master Mix-Plus

    Catalog No.(s): TYB-QPK-212, TYB-QPK-212X5

    For real time PCR This product is a Taq DNA polymerase-based 2 x master mix for real-time PCR, which contains all components, except for the primer. This reagent is applicable for intercalation assay with SYBR® Green I.Features: -This reagentcan be used...

    $510.00 - $2,336.00
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  • SYBR Green Realtime PCR Master Mix

    Cosmo Bio

    SYBR Green Realtime PCR Master Mix

    Catalog No.(s): TYB-QPK-201, TYB-QPK-201X5

    Quantitative Determination of Gene Expression by Two-Step RT-PCRAllows quantitative determination of RNA using cDNA as the sample. SNP TypingAllows SNP typing etc. with TaqManR Assay (using Realtime PCR Master Mix). This product is a Taq DNA...

    $510.00 - $2,336.00
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  • Realtime PCR Master Mix

    Cosmo Bio

    Realtime PCR Master Mix

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

    Realtime QPCR using TaqMan##R### assay, hybridization probe assay and other methods. This product is the master mix for QPCR by fluorescence detection based on Taq DNA polymerase. Product generated with Toyobo's ReverTra Ace -(alpha)-R cDNA synthesis...

    $510.00 - $2,336.00
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  • KOD SYBR qPCR Mix

    Cosmo Bio

    KOD SYBR qPCR Mix

    Catalog No.(s): TYB-QKD-201T, TYB-QKD-201, TYB-QKD-201X5

    Documents & Links for KOD SYBR qPCR Mix Datasheet tyb-qkd-201t_kod-sybr-qpcr-mix_datasheet.pdf Vendor Page KOD SYBR qPCR Mix at Cosmo Bio Documents & Links for KOD SYBR qPCR Mix Datasheet tyb-qkd-201t_kod-sybr-qpcr-mix_datasheet...

    $136.00 - $2,020.00
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  • Klenow Fragment (DNA Polymerase I, Large Fragment)

    Cosmo Bio

    Klenow Fragment (DNA Polymerase I, Large Fragment)

    Catalog No.(s): TYB-PLA-111

    For blunting of double stranded DNA ends, introducing mutation by primer method, creation of labelled DNA probes by random primer methods, dye-deoxy sequencing. This enzyme is a DNA Polymerase which is Baterial DNA Polymerase I that has lost it's...

    $235.00
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  • PVDF Blocking Reagent for Can Get Signal

    Cosmo Bio

    PVDF Blocking Reagent for Can Get Signal

    Catalog No.(s): TYB-NYPBR01

    High-performance blocking reagent PVDF Blocking Reagent for Can Get Signal® is a high performance blocking reagent optimized for Western blot. The reagent consists of a synthesized polymer, with no protein components. The reagent can be used...

    $212.00
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  • dNTPs Mixture (10mM)

    Cosmo Bio

    dNTPs Mixture (10mM)

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

    Nucleotides dNTPs Documents & Links for dNTPs Mixture (10mM) Vendor Page dNTPs Mixture (10mM) at Cosmo Bio Documents & Links for dNTPs Mixture (10mM) Vendor Page dNTPs Mixture (10mM)

    $126.00
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  • dNTPs Mixture (2mM)

    Cosmo Bio

    dNTPs Mixture (2mM)

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

    Nucleotides dNTPs Documents & Links for dNTPs Mixture (2mM) Vendor Page dNTPs Mixture (2mM) at Cosmo Bio Documents & Links for dNTPs Mixture (2mM) Vendor Page dNTPs Mixture (2mM)

    $126.00
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  • dNTPs Set (dATP, dCTP, dGTP, dTTP)

    Cosmo Bio

    dNTPs Set (dATP, dCTP, dGTP, dTTP)

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

    Nucleotides dNTPs Documents & Links for dNTPs Set (dATP, dCTP, dGTP, dTTP) Vendor Page dNTPs Set (dATP, dCTP, dGTP, dTTP) at Cosmo Bio Documents & Links for dNTPs Set (dATP, dCTP, dGTP, dTTP) Vendor Page dNTPs Set (dATP, dCTP, dGTP,...

    $598.00
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  • Ligation high Ver.2

    Cosmo Bio

    Ligation high Ver.2

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

    High-Efficient Ligation Reagent The ligation reaction is an essential step in genetic recombination experiments. For this reaction, T4 DNA ligase has been widely used. Ligation high Ver.2 is a highly efficient premixed T4 Ligase reagent.Features: Highly...

    $346.00
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  • Ligation high

    Cosmo Bio

    Ligation high

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

    DNA Ligation Kit Ligation high is a ligation kit consisting mainly of T4 DNA Ligase. Composition has been optimized to improve stability after freezing/thawing cycles and enhance reaction efficiency. All of the reaction buffers, rATP, and DTT, etc...

    $315.00
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  • T4 DNA Ligase Buffer

    Cosmo Bio

    T4 DNA Ligase Buffer

    Catalog No.(s): TYB-LGA-1B

    For ligation of DNA fragments and nicks. Usage for reactions concerning insertion of gene of interest into vectors, and addition of linkers to DNA. Documents & Links for T4 DNA Ligase Buffer Vendor Page T4 DNA Ligase Buffer at Cosmo...

    $16.00
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  • T4 DNA Ligase (Toyobo)

    Cosmo Bio

    T4 DNA Ligase (Toyobo)

    Catalog No.(s): TYB-LGA-111, TYB-LGA-111X5

    For ligation of DNA fragments and nicks. Usage for reactions concerning insertion of gene of interest into vectors, and addition of linkers to DNA. This product is a DNA Ligase which is derived from T4 Phage. It ligates DNA fragments and nicks...

    $235.00 - $942.00
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  • Quick Taq HS Dye Mix

    Cosmo Bio

    Quick Taq HS Dye Mix

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

    For PCR Quick Taq HS DyeMix is a Taq-based 2× master mix PCR reagent that contains an electrophoresis dye (BPB; bromophenol blue) and anti-Taq antibodies for hot start PCR. This reagent contains all components for PCR except primers and template DNA...

    $136.00 - $605.00
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  • Calf Intestine Alkaline Phosphatase Buffer

    Cosmo Bio

    Calf Intestine Alkaline Phosphatase Buffer

    Catalog No.(s): TYB-CAP-1B

    Buffer for Calf Intestine Alkaline Phosphatase Documents & Links for Calf Intestine Alkaline Phosphatase Buffer Vendor Page Calf Intestine Alkaline Phosphatase Buffer at Cosmo Bio Documents & Links for Calf Intestine Alkaline Phosphatase...

    $16.00
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  • Calf intestine Alkaline Phosphatase

    Cosmo Bio

    Calf intestine Alkaline Phosphatase

    Catalog No.(s): TYB-CAP-101X5

    To prevent self ligation of cloning vector. This enzyme is Alkaline Phosphatase (CIAP) derived from Calf intestine. It can be used for DNA ligation and de-phosphrylation after treatment of restriction enzyme. Documents & Links for Calf intestine...

    $629.00
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  • Alkaline Phosphatase (Calf Intestine)

    Cosmo Bio

    Alkaline Phosphatase (Calf Intestine)

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

    To prevent self ligation of cloning vector. This enzyme is Alkaline Phosphatase (CIAP) derived from Calf intestine. It can be used for DNA ligation and de-phosphrylation after treatment of restriction enzyme. Documents & Links for Alkaline...

    $158.00
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  • Blend Taq -Plus-

    Cosmo Bio

    Blend Taq -Plus-

    Catalog No.(s): TYB-BTQ-201, TYB-BTQ-201X5

    For PCR Blend Taq® and Blend Taq® -Plus- are highly efficient Taq-based DNA polymerases developed based on the Barns' method(1). This method uses a DNA polymerase which lacked 3'→5' exonuclease (proofreading) activity (e.g., TaqDNA polymerase) and a...

    $288.00 - $1,154.00
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  • Blend Taq / Blend Taq -Plus-Blend Taq -Plus- Buffer

    Cosmo Bio

    Blend Taq / Blend Taq -Plus-Blend Taq -Plus- Buffer

    Catalog No.(s): TYB-BTQ-1B

    For PCR Blend Taq® and Blend Taq® -Plus- are highly efficient Taq-based DNA polymerases developed based on the Barns' method(1). This method uses a DNA polymerase which lacked 3'→5' exonuclease (proofreading) activity (e.g., TaqDNA polymerase) and a...

    $15.00
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  • Blend Taq

    Cosmo Bio

    Blend Taq

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

    For PCR Blend Taq® and Blend Taq® -Plus- are highly efficient Taq-based DNA polymerases developed based on the Barns' method(1). This method uses a DNA polymerase which lacked 3'→5' exonuclease (proofreading) activity (e.g., TaqDNA polymerase) and a...

    $262.00 - $1,829.00
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  • rATP

    Cosmo Bio

    rATP

    Catalog No.(s): TYB-ATP-111

    Product: rATP (adenine ribose triphosphate nucleotide Format: Aqueous solution (Na salt) Concentration: 100mM Volume: 0.5ml Amount: 50 micromoles

    $235.00
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  • pROX-FL92.1ttt

    Cosmo Bio

    pROX-FL92.1ttt

    Catalog No.(s): PRX-TS013

    The pROX expression vector series are for expressing proteins in E. coli cell-free coupled transcription/translation systems, including PURESYSTEM® and The RYTS Kit. Each vector in the...

    $330.00
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  • pROX-FL92.1cggg

    Cosmo Bio

    pROX-FL92.1cggg

    Catalog No.(s): PRX-TS012

    The pROX expression vector series are for expressing proteins in E. coli cell-free coupled transcription/translation systems, including PURESYSTEM® and The RYTS Kit. Each vector in the...

    $330.00
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  • pROX-FL92.1amber

    Cosmo Bio

    pROX-FL92.1amber

    Catalog No.(s): PRX-TS011

    The pROX expression vector series are for expressing proteins in E. coli cell-free coupled transcription/translation systems, including PURESYSTEM® and The RYTS Kit. Each vector in the...

    $330.00
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  • T7 RNA Polymerase

    Cosmo Bio

    T7 RNA Polymerase

    Catalog No.(s): PRX-RP6T7, PRX-RP6T7X5

    E. coli Cell-free Protein Synthesis System T7 RNA Polymerase catalyzes the synthesis of RNA in the presence of the DNA template including T7 phage promoter.Application: Synthesis of single-strand RNASynthesis of labeled RNA probeSynthesis of precursors...

    $144.00 - $655.00
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  • Thermal-stability and activity Stability: 30 minutes treatment Activity: pH4.6

    Cosmo Bio

    S1 Nuclease

    Catalog No.(s): OZK-OZ-40-EX

    S1 Nuclease is a single-stranded-specific endonuclease that hydrolyzes single-stranded DNA and RNA into acid-soluble 5’- mononucleotides. It hydrolyzes single-stranded regions in duplex DNA such as loops and gaps. This S1 Nuclease is from...

    $145.00
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  • Labiase Bacterial Cell Lytic Enzymes

    Cosmo Bio

    Labiase Bacterial Cell Lytic Enzymes

    Catalog No.(s): OZK-OZ-30EX

    Background Labiase, produced by a submerged culture of Streptomyces fulvissimus TU-6, is a new enzyme preparation that lyses effectively cell walls of numerous lactic acid bacterium. This preparation is used as a tool for studies of cell walls structure...

    $361.00
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  • Westase Yeast Cell Lytic Enzymes

    Cosmo Bio

    Westase Yeast Cell Lytic Enzymes

    Catalog No.(s): OZK-OZ-20EX

    Application: Digestive enzyme of cell walls of yeast Westase was prepared from liquid culture supernatant of Streptomyces rochei DB-34. This product has complex lytic activities of yeast cell mainly consisting of (beta)-1,6 glucanase and (beta)-1,3...

    $318.00
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  • Yatalase, Fungal Cell Lytic Enzymes

    Cosmo Bio

    Yatalase, Fungal Cell Lytic Enzymes

    Catalog No.(s): OZK-OZ-10EX

    Yatalase is used to lyse cell walls of filamentous fungi. The product is prepared from culture supernatants of Corynebacterium sp. OZ-21, and consists mainly of chitinase, chitobiase and β-1,3-glucanase. Features Has excellent thermostability and...

    $390.00
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