{"product_id":"conical-microcentrifuge-tubes-0-5ml-natural-ppc-2143425080e1","title":"0.5 mL Microcentrifuge Tubes, Tethered Caps, PPC, Natural — 214-3425-080 | 1000\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e0.5 mL Conical Microcentrifuge Tubes with Tethered Cap — Natural PPC, Graduated, 1000\/Bag\u003c\/h2\u003e\n\u003cp\u003eThese 0.5 mL conical microcentrifuge tubes feature a permanently attached tethered cap and molded graduation markings, making them a reliable choice for PCR preparation, DNA\/RNA extraction, enzyme reactions, and microvolume clinical sample processing. Constructed from polypropylene copolymer (PPC), the tubes offer enhanced flexibility and impact resistance compared to standard PP homopolymer, reducing the risk of cracking during high-speed centrifuge runs. Supplied non-sterile in sealed 1000\/Bag packaging, part number 214-3425-080 delivers lot-to-lot dimensional consistency for reliable fit in standard 0.5 mL microcentrifuge rotor positions.\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\u003e214-3425-080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e0.5 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 (permanently attached)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGraduation\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\u003eNatural\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\u003e1000\/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 and qPCR reaction setup requiring precise microvolume handling\u003c\/li\u003e\n\u003cli\u003eDNA and RNA extraction with minimal dead-volume loss in a conical format\u003c\/li\u003e\n\u003cli\u003eEnzyme incubation and kinetics assays at the 0.5 mL scale\u003c\/li\u003e\n\u003cli\u003eCell and protein pelleting in benchtop microcentrifuge workflows\u003c\/li\u003e\n\u003cli\u003eClinical and CLIA laboratory microvolume sample processing where lot traceability is required\u003c\/li\u003e\n\u003cli\u003eHigh-throughput pipetting workflows where the tethered cap eliminates cap loss and reduces cross-contamination risk\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 \/ isopropanol \/ ethanol\u003c\/td\u003e\n\u003ctd\u003eGood — short-term contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetonitrile\u003c\/td\u003e\n\u003ctd\u003eGood — short-term contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAromatic solvents (toluene, xylene)\u003c\/td\u003e\n\u003ctd\u003eNot recommended\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 under ISO 9001 quality management, these Caplugs® Evergreen tubes are manufactured from BPA-free, phthalate-free polypropylene copolymer resin, ensuring compliance with modern laboratory safety standards. Each bag carries a lot number and manufacturing date to support full traceability in CAP-, CLIA-, and ISO 15189-accredited laboratories. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from domestic inventory, providing consistent supply without offshore lead-time risk; tiered pricing is available for high-volume institutional and grant-funded accounts.\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 — these tubes are supplied non-sterile. They are intended for standard molecular biology, research, and clinical workflows that do not require a sterility guarantee. If your protocol requires sterile tubes, look for a DNase\/RNase-free or sterile-designated product.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the advantage of a tethered cap over a separate snap cap?\u003c\/strong\u003e\u003cbr\u003eThe tethered cap is permanently attached via a flexible hinge, so it cannot be misplaced or mixed up between tubes during high-throughput pipetting. Single-handed opening and closing also reduces workflow interruption and lowers the risk of cross-contamination in repetitive microvolume processing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy use polypropylene copolymer (PPC) instead of standard polypropylene?\u003c\/strong\u003e\u003cbr\u003ePPC offers greater flexibility and impact resistance than standard PP homopolymer, which reduces cracking during high-speed microcentrifuge runs — a meaningful advantage when working with precious or limited samples.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre the volume graduations permanent and reagent-resistant?\u003c\/strong\u003e\u003cbr\u003eYes — the graduation markings are molded directly into the PPC tube wall rather than printed on, so they will not wash off or fade when exposed to aqueous buffers, dilute acids or bases, or standard molecular biology reagents.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"0.5 mL Conical Microcentrifuge Tubes, Tethered Cap, Graduated, Natural PPC, Non-Sterile — 1000\/Bag\",\"sku\":\"2143425080E1\",\"mpn\":\"214-3425-080\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene Copolymer (PPC)\",\"color\":\"Natural\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"59.99\",\"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 — these tubes are supplied non-sterile. 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