{"product_id":"conical-flat-microcentrifuge-tubes-2-0ml-amber-ppc-2143442n80e1","title":"2.0 mL Microcentrifuge Tubes, Tethered Caps, PPC, Amber — 214-3442-N80 | 250\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e2.0 mL Amber Microcentrifuge Tubes with Tethered Flat-Top Cap — PPC, Graduated, 250\/Bag\u003c\/h2\u003e\n\u003cp\u003eThese 2.0 mL conical-bottom microcentrifuge tubes feature a permanently tethered flat-top cap and are molded from amber polypropylene copolymer (PPC) for enhanced flexibility and light-sensitive sample protection. Molded volume graduations and a flat cap writing surface support precise sample handling and direct labeling without secondary labels. Supplied non-sterile in sealed 250\/Bag packaging, part number 214-3442-N80 is well suited for PCR preparation, nucleic acid extraction, enzyme reactions, and clinical microvolume workflows.\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-N80\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\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\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 setup and enzyme reaction preparation requiring low dead-volume conical geometry\u003c\/li\u003e\n\u003cli\u003eDNA and RNA extraction workflows where complete sample recovery from the conical tip is critical\u003c\/li\u003e\n\u003cli\u003eCell pelleting and microvolume centrifugation in standard microcentrifuge rotors\u003c\/li\u003e\n\u003cli\u003eClinical and CAP\/CLIA laboratory sample processing with lot traceability requirements\u003c\/li\u003e\n\u003cli\u003eStorage of light-sensitive reagents, nucleotides, or fluorescent-labeled samples — the amber wall reduces photodegradation\u003c\/li\u003e\n\u003cli\u003eHigh-throughput pipetting runs where the tethered cap eliminates cap loss and 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 — suitable for standard molecular biology concentrations\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 compatibility 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 tubes are manufactured from BPA-free, phthalate-free polypropylene copolymer resin with lot-to-lot dimensional consistency that ensures reliable seating in standard microcentrifuge rotor positions. PPC construction provides greater flexibility and impact resistance than standard PP homopolymer, reducing the risk of cracking during high-speed centrifuge runs. LabSupplies.com is an authorized Caplugs® Evergreen dealer and ships from USA inventory, with tiered pricing available for institutional, hospital, and grant-funded laboratories purchasing in volume.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these microcentrifuge tubes autoclavable?\u003c\/strong\u003e\u003cbr\u003ePolypropylene copolymer (PPC) is generally autoclavable, but Caplugs® Evergreen has not published an explicit autoclave rating for this product. If sterility is required, contact LabSupplies.com to confirm before autoclaving or consider a certified sterile alternative.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy choose amber tubes over clear for everyday microcentrifuge work?\u003c\/strong\u003e\u003cbr\u003eThe amber wall filters visible and UV light, protecting light-sensitive samples such as fluorescent dyes, certain nucleotides, and photolabile reagents from degradation during storage and benchtop handling — without requiring foil wrapping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the tethered cap affect centrifuge balance or rotor fit?\u003c\/strong\u003e\u003cbr\u003eThe flat-top tethered cap is designed to the same outer profile as standard 2.0 mL microcentrifuge tubes and seats normally in standard rotor positions. The flexible hinge remains folded flat against the tube body during a run, so it does not create an imbalance or clearance issue in typical fixed-angle and swing-bucket rotors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I write directly on the cap without a label printer?\u003c\/strong\u003e\u003cbr\u003eYes — the flat cap geometry provides a stable, smooth writing surface compatible with standard laboratory markers, allowing quick handwritten identification without adhesive labels that may peel during freezing or centrifugation.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"2.0 mL Amber Microcentrifuge Tubes with Tethered Flat-Top Cap, PPC, Graduated, 250\/Bag\",\"sku\":\"2143442N80E1\",\"mpn\":\"214-3442-N80\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene Copolymer (PPC)\",\"color\":\"Amber\",\"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 autoclavable?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Polypropylene copolymer (PPC) is generally autoclavable, but Caplugs® Evergreen has not published an explicit autoclave rating for this product. 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