{"product_id":"thermo-scientific-centrifuge-tube-15-ml-with-screw-cap-conical","title":"Thermo Scientific Centrifuge Tube 15 ml with Screw Cap Conical 425 Tubes","description":"\u003ch3\u003eThermo Scientific 339651 Centrifuge Tubes – 15 mL, Conical, Racked, Sterile\u003c\/h3\u003e\n\u003cp\u003eThe Thermo Scientific 339651 is a high-performance 15 mL conical centrifuge tube designed for the secure containment, separation, and storage of biological and chemical samples. Manufactured from high-clarity, medical-grade polypropylene, these tubes provide excellent chemical resistance and a clear view of sample pellets and interfaces. This specific model is supplied pre-loaded into racks, facilitating rapid workflow integration and organized storage. Featuring a leak-proof screw cap and a conical bottom for superior pelleting, the 339651 is certified sterile and non-pyrogenic, making it a staple for cell culture, proteomics, and general molecular biology applications.\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\u003ePre-Racked Convenience:\u003c\/b\u003e Supplied in organized racks to minimize hands-on time and reduce the risk of contamination associated with handling bulk tubes.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eConical Bottom Geometry:\u003c\/b\u003e Specifically engineered to optimize sample concentration and pelleting during centrifugation, ensuring maximum recovery of supernatants.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eHigh-Torque Screw Cap:\u003c\/b\u003e Equipped with a flat-top screw closure that provides a secure, leak-proof seal even under high-speed centrifugation or during transport.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003ePermanent Graduations:\u003c\/b\u003e Features high-contrast, black printed graduations in 0.5 mL increments and a large white writing area for secure and legible sample labeling.\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 339651\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eVolume Capacity:\u003c\/b\u003e 15 mL\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eMaterial:\u003c\/b\u003e High-Purity Polypropylene\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003ePackaging Format:\u003c\/b\u003e Racked (50 Tubes per Rack)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eMax Centrifugation Speed:\u003c\/b\u003e Approx. 10,500 x g (depending on rotor and adapter)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eSterility:\u003c\/b\u003e Sterile (Gamma Irradiated)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003ePurity:\u003c\/b\u003e Certified Non-pyrogenic, Non-cytotoxic, and RNase\/DNase-free.\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\u003eCell Culture Processing:\u003c\/b\u003e Ideal for harvesting cells, washing pellets, and preparing media aliquots in aseptic environments.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eSample Storage:\u003c\/b\u003e The robust polypropylene construction allows for storage in mechanical freezers down to -80°C, protecting samples from thermal stress.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eStandardized Lab Workflows:\u003c\/b\u003e Designed to fit all standard 15 mL centrifuge rotors and benchtop racks, ensuring universal compatibility across laboratory platforms.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eContamination Control:\u003c\/b\u003e Sterile packaging and the racked format minimize the need for manual sorting, helping to maintain a high level of cleanliness in sensitive molecular assays.\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":44498029150460,"sku":"4154","price":99.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/thermo-scientific-centrifuge-tube-15-ml-with-screw-cap-conical-425-tubes-centrifuge-tubes-thermo-scientific-316379.jpg?v=1766284495","url":"https:\/\/lifesciencestrading.com\/products\/thermo-scientific-centrifuge-tube-15-ml-with-screw-cap-conical","provider":"Life Sciences Trading","version":"1.0","type":"link"}