{"product_id":"thermo-scientific-3490s-centrifuge-tube-2-ml-screw-cap","title":"Thermo Scientific 3490S Centrifuge Tube 2 mL Screw Cap 2 Packs of 500 Tubes","description":"\u003ch3\u003eThermo Scientific 3490S Centrifuge Tube – 2.0 mL, Skirted, Screw Cap, Sterile\u003c\/h3\u003e\n\u003cp\u003eThe Thermo Scientific 3490S is a premium 2.0 mL free-standing microcentrifuge tube designed for secure sample storage, transport, and high-speed processing. Manufactured from high-clarity, medical-grade polypropylene, these tubes feature a skirted base that allows them to stand independently on laboratory surfaces. This model is supplied sterile and is certified free from RNase, DNase, and pyrogens, making it an ideal choice for molecular biology, clinical diagnostics, and forensic research. The screw-cap design provides a superior airtight seal, preventing sample evaporation and contamination even during extreme thermal cycling or long-term cryogenic storage.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Performance and Design\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eFree-Standing Skirted Base:\u003c\/b\u003e The stable, flat-bottom exterior allows the tube to remain upright without a rack, facilitating efficient one-handed pipetting and reducing the risk of benchtop spills.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eSecure Screw Closure:\u003c\/b\u003e The threaded cap provides a reliable, leak-proof barrier, essential for protecting volatile samples and preventing leakage during intensive vortexing or high-speed centrifugation.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eValidated Sterility:\u003c\/b\u003e Gamma-irradiated to ensure the highest level of purity, these tubes are ready for use in aseptic environments and sensitive genomic applications.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eTemperature and Chemical Resilience:\u003c\/b\u003e Engineered to withstand extreme environments, from ultra-low temperature freezers (-80°C) to vapor-phase liquid nitrogen, as well as autoclaving procedures (+121°C).\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eCatalog Number:\u003c\/b\u003e 3490S\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eVolume Capacity:\u003c\/b\u003e 2.0 mL\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eMaterial:\u003c\/b\u003e High-Purity Polypropylene (PP)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eBase Style:\u003c\/b\u003e Skirted (Free-Standing)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eSterility:\u003c\/b\u003e Sterile\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003ePurity:\u003c\/b\u003e Certified DNase, RNase, and Pyrogen Free\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003ePackaging:\u003c\/b\u003e Typically supplied in bulk bags (500\/pk or 5000\/cs)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Benefits \u0026amp; Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eClinical Specimen Collection:\u003c\/b\u003e The self-standing design and secure screw cap make these tubes excellent for collecting, transporting, and storing patient samples such as urine, sputum, or blood derivatives.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eGenomics and PCR:\u003c\/b\u003e The sterile, high-purity resin ensures that DNA and RNA samples remain free from degradative enzymes and inhibitors throughout the extraction and amplification process.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eBiobanking:\u003c\/b\u003e Optimized for long-term preservation of cell lysates, enzymes, and reagents in deep-freeze conditions, ensuring sample longevity and stability.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eAutomated Workflows:\u003c\/b\u003e Compatible with most standard 2.0 mL racks and automated liquid handling systems, providing a versatile solution for high-throughput laboratory settings.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003cp style=\"margin: 0; font-size: 0.8em;\"\u003e\u003ci\u003eAll product names, logos, and brands are property of their respective owners.\u003c\/i\u003e\u003c\/p\u003e","brand":"Thermo Scientific","offers":[{"title":"Default Title","offer_id":44498051006716,"sku":"4172","price":113.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/thermo-scientific-3490s-centrifuge-tube-2-ml-screw-cap-2-packs-of-500-tubes-centrifuge-tubes-thermo-scientific-942284.jpg?v=1778282010","url":"https:\/\/lifesciencestrading.com\/products\/thermo-scientific-3490s-centrifuge-tube-2-ml-screw-cap","provider":"Life Sciences Trading","version":"1.0","type":"link"}