{"product_id":"conical-microcentrifuge-tubes-0-5ml-amber-ppc-2143425n80e1","title":"0.5 mL Microcentrifuge Tubes, Tethered Caps, PPC, Amber — 214-3425-N80 | 1000\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e0.5 mL Amber Microcentrifuge Tubes with Tethered Cap — Conical, PPC, Graduated, 1000\/Bag\u003c\/h2\u003e\n\u003cp\u003eThese 0.5 mL conical microcentrifuge tubes feature a permanently attached tethered cap and are molded from amber Polypropylene Copolymer (PPC) — a material that offers enhanced flexibility and impact resistance compared with standard PP homopolymer, reducing cracking risk during high-speed centrifuge runs. Graduated volume markings are molded directly into the tube wall for solvent-resistant, permanent volume estimation at a glance. Supplied non-sterile in sealed 1000\/Bag packaging, part number 214-3425-N80 is designed for demanding molecular biology, clinical, and research microvolume workflows where cap security and light protection matter.\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-N80\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\u003eAmber\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 in the 0.5 mL range\u003c\/li\u003e\n\u003cli\u003eDNA and RNA extraction — conical geometry minimizes dead volume during low-elution workflows\u003c\/li\u003e\n\u003cli\u003eEnzyme reactions, restriction digests, and ligation setups\u003c\/li\u003e\n\u003cli\u003eCell and nuclei pelleting in standard microcentrifuge rotors\u003c\/li\u003e\n\u003cli\u003eLight-sensitive sample storage where amber construction reduces photodegradation\u003c\/li\u003e\n\u003cli\u003eClinical and CLIA laboratory microvolume processing with lot-traceable consumables\u003c\/li\u003e\n\u003cli\u003eHigh-throughput pipetting workflows where the tethered cap prevents cap loss and cross-contamination\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)\u003c\/td\u003e\n\u003ctd\u003eNot recommended — limited resistance\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 with lot-level quality controls that ensure consistent geometry, wall thickness, and tethered cap hinge durability across every tube in the bag. Sealed 1000\/Bag packaging preserves product integrity from warehouse receipt through point-of-use and supports lot traceability for CAP, CLIA, and ISO 15189 accredited laboratories. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with tiered volume pricing available for high-use clinical, research, and biotech 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 — they are supplied non-sterile. For applications requiring sterile consumables, such as tissue culture or certain clinical assays, sterile-packaged alternatives should be selected. Non-sterile tubes are appropriate for the vast majority of molecular biology and routine research workflows.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is the cap tethered rather than separate?\u003c\/strong\u003e\u003cbr\u003eThe tethered cap is permanently attached via a flexible hinge, which eliminates the risk of cap loss and prevents mix-ups between caps and tubes during high-throughput pipetting sessions. Single-handed opening and closing also reduces repetitive motion interruptions on the bench.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the advantage of PPC over standard polypropylene?\u003c\/strong\u003e\u003cbr\u003ePolypropylene Copolymer (PPC) offers greater flexibility and impact resistance than standard PP homopolymer. This reduces the likelihood of stress cracking during high-speed microcentrifuge runs and makes the tubes more durable in cold-storage and freeze-thaw cycling applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy choose amber-colored tubes instead of natural or clear?\u003c\/strong\u003e\u003cbr\u003eThe amber pigmentation blocks a significant portion of visible and ultraviolet light, helping to protect light-sensitive samples — such as fluorescent dye conjugates, RNA, and photodegradable reagents — during bench processing and short-term storage. The color also provides an easy visual cue for differentiating sample types in multi-tube rack workflows.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"0.5 mL Amber Microcentrifuge Tubes with Tethered Cap — Conical, PPC, Graduated, 1000\/Bag\",\"sku\":\"2143425N80E1\",\"mpn\":\"214-3425-N80\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene Copolymer (PPC)\",\"color\":\"Amber\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"59.99\",\"availability\":\"https:\/\/schema.org\/InStock\"}}\u003c\/script\u003e\n\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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