{"product_id":"conical-flat-microcentrifuge-tubes-2-0ml-blue-ppc-2143442b80e1","title":"2.0 mL Microcentrifuge Tubes, Tethered Caps, PPC, Blue — 214-3442-B80 | 250\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e2.0 mL Conical Microcentrifuge Tubes with Tethered Flat-Top Cap — PPC, Blue, 250\/Bag (214-3442-B80)\u003c\/h2\u003e\n\u003cp\u003eThese 2.0 mL polypropylene copolymer (PPC) microcentrifuge tubes feature a permanently tethered flat-top cap, molded volume graduations, and a blue color for fast visual identification across multi-tube workflows. Supplied non-sterile in sealed 250\/Bag packaging, the conical bottom geometry minimizes dead volume during pelleting and extraction steps. Manufactured under lot-to-lot dimensional controls, part number 214-3442-B80 delivers consistent fit in standard microcentrifuge rotor positions run after run.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e214-3442-B80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e2.0 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBottom Style\u003c\/td\u003e\n\u003ctd\u003eConical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCap Style\u003c\/td\u003e\n\u003ctd\u003eTethered flat-top\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGraduations\u003c\/td\u003e\n\u003ctd\u003eMolded volume markings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolypropylene Copolymer (PPC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterility\u003c\/td\u003e\n\u003ctd\u003eNon-Sterile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBPA \/ Phthalate Free\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e250\/Bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePCR preparation and enzyme reaction setup requiring precise microvolume handling\u003c\/li\u003e\n\u003cli\u003eDNA and RNA extraction workflows where a low dead-volume conical bottom maximizes nucleic acid recovery\u003c\/li\u003e\n\u003cli\u003eCell pelleting and microcentrifuge-based separation protocols\u003c\/li\u003e\n\u003cli\u003eClinical microvolume sample processing in CAP- and CLIA-regulated laboratories requiring clear lot traceability\u003c\/li\u003e\n\u003cli\u003eHigh-throughput pipetting workflows where single-handed cap operation and tethered design prevent cap loss and cross-contamination\u003c\/li\u003e\n\u003cli\u003eHigh-density tube storage — the flat cap profile allows stable stacking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eChemical Resistance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eReagent \/ Condition\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAqueous buffers \/ saline\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute acids\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute bases\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethanol\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsopropanol\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetonitrile\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAromatic solvents (toluene, xylene, etc.)\u003c\/td\u003e\n\u003ctd\u003eNot recommended — verify before use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorinated solvents (chloroform, DCM)\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eMade in USA, these Caplugs® Evergreen microcentrifuge tubes are produced from BPA-free, phthalate-free polypropylene copolymer resin. PPC construction provides greater flexibility and impact resistance compared with standard PP homopolymer, reducing cracking risk during high-speed centrifuge runs. Sealed 250\/Bag packaging maintains product integrity from warehouse receipt through point-of-use, and lot-to-lot consistency supports traceability requirements in ISO 15189, CAP, and CLIA environments. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with volume pricing available for institutional and grant-funded laboratories.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these microcentrifuge tubes sterile?\u003c\/strong\u003e\u003cbr\u003eNo — they are supplied non-sterile. For applications requiring sterility, downstream sterilization methods compatible with polypropylene (such as gamma irradiation) should be evaluated for your specific protocol.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the advantage of polypropylene copolymer (PPC) over standard polypropylene?\u003c\/strong\u003e\u003cbr\u003ePPC incorporates a comonomer that increases chain flexibility, giving the tubes greater impact resistance and reduced brittleness during high-speed centrifuge runs compared with standard PP homopolymer — an important consideration when spinning at maximum rotor speeds.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I write directly on the cap without a label?\u003c\/strong\u003e\u003cbr\u003eYes. The flat-top cap geometry provides a stable, smooth writing surface compatible with standard laboratory markers, which supports direct sample labeling and traceability without adhesive labels that can detach during centrifugation or freezer storage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill the tethered cap stay secure during centrifugation?\u003c\/strong\u003e\u003cbr\u003eThe cap is permanently attached via a flexible hinge rather than being a separate loose component, which eliminates cap loss during high-throughput pipetting. For specific centrifuge speed and rotor compatibility, consult your rotor manufacturer's guidelines for capped 2.0 mL microtubes.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"2.0 mL Conical Microcentrifuge Tubes, Tethered Flat-Top Cap, PPC, Blue — 250\/Bag\",\"sku\":\"2143442B80E1\",\"mpn\":\"214-3442-B80\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene Copolymer (PPC)\",\"color\":\"Blue\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"33.18\",\"availability\":\"https:\/\/schema.org\/InStock\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Are these microcentrifuge tubes sterile?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No — they are supplied non-sterile. 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