Thermo Scientific Centrifuge Tube 1.5 ml Screw Cap Sterile 1000 Tubes

Thermo Scientific 3461NK Centrifuge Tube – 1.5 mL, Screw Cap, Natural

The Thermo Scientific 3461NK is a high-durability 1.5 mL microcentrifuge tube engineered for secure sample containment in demanding laboratory environments. Constructed from high-clarity, medical-grade polypropylene, these tubes are designed to withstand high-speed centrifugation, thermal cycling, and rigorous chemical exposure. The screw-cap closure provides a robust, leak-proof seal that is superior to traditional snap-caps for preventing evaporation and sample loss during long-term cryogenic storage or high-temperature incubation. The 3461NK is a versatile solution for molecular biology, clinical diagnostics, and forensic applications where sample integrity and security are of paramount importance.

Technical Performance and Design

• Secure Screw Closure: The threaded cap design ensures an airtight and leak-proof seal, protecting samples against pressurized leaks during centrifugation and preventing contamination during storage.

• High-Clarity Polypropylene: Manufactured from USP Class VI resin, providing excellent optical transparency for easy sample inspection and high resistance to a wide range of laboratory reagents and solvents.

• Centrifugation Stability: Engineered with reinforced walls to withstand high RCF (Relative Centrifugal Force) ratings, making them suitable for pelleting, phase separation, and clarified lysate preparation.

• Wide Temperature Range: Designed to maintain structural integrity across extreme temperatures, from vapor-phase liquid nitrogen storage (-196°C) to boiling and autoclaving (+121°C).

Product Specifications

• Catalog Number: 3461NK

• Volume Capacity: 1.5 mL

• Material: High-Purity Polypropylene

• Cap Type: Screw Cap with O-ring 

• Color: Natural/Clear

• Sterility: Sterile 

• Purity: Certified DNase, RNase, and Pyrogen Free.

Key Benefits & Applications

• Molecular Biology: Ideal for DNA/RNA extraction and protein purification workflows where secure, leak-proof containment is required during intensive vortexing and centrifugation steps.

• Long-Term Biobanking: The screw-cap design is the preferred choice for the long-term preservation of valuable biological samples in ultra-low temperature freezers, reducing the risk of accidental cap opening due to pressure changes.

• Hazardous Material Handling: Provides an extra layer of security when handling infectious agents, radioactive isotopes, or volatile organic compounds that may pose a risk with standard snap-top tubes.

• Standardized Lab Compatibility: Sized to fit all standard microcentrifuge rotors and automated liquid handling racks, ensuring seamless integration into existing laboratory protocols.

Expiration Date: 2027-05

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