{"product_id":"heathrow-microfuge-tubes-0-5ml","title":"Heathrow Scientific 0.5mL Microcentrifuge Tubes - HS4422 - DNase\/RNase-Free, Pack of 1000","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSub-microliter work demands tubes built for it. The Heathrow Scientific HS4422 0.5 mL Microcentrifuge Tube is engineered for the precise handling of small-volume samples where contamination, evaporation, and labeling errors are the primary risks. Certified DNase, RNase, and Pyrogen free from production lot to lot, these natural-color polypropylene tubes are ready for molecular biology, enzyme assays, and any application where nuclease contamination would compromise results.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe frosted writing area accepts permanent marker labeling directly on the tube body — no label slippage, no secondary labeling step. The attached snap cap opens one-handed and is syringe-pierceable for direct sampling without exposure. Graduated at 0.1, 0.3, and 0.5 mL for fast visual volume confirmation. Rated to 15,000 × g and fully autoclavable. Supplied in a pack of 1,000 for high-throughput lab consumption.\u003c\/p\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFeatures and Benefits\u003c\/h2\u003e\n\u003cul class=\"marker:text-quiet list-disc\"\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eCertified DNase, RNase, and Pyrogen Free:\u003c\/strong\u003e Lot-certified clean for molecular biology applications — eliminates contamination risk in sensitive enzyme reactions, PCR setups, and RNA-based workflows.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eFrosted Writing Area:\u003c\/strong\u003e Permanent marker-receptive surface directly on the tube body eliminates the need for adhesive labels — markings stay put through centrifugation, freezing, and handling.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003e15,000 × g Rated:\u003c\/strong\u003e Handles high-speed centrifuge applications for small-volume sample preparation — suitable for protein precipitation, pelleting, and column-based purification protocols.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eAttached Snap Cap - One-Handed Use:\u003c\/strong\u003e Integrated flat cap opens and closes with one hand — maintains sample security during rapid, repetitive tube handling in high-throughput settings.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eSyringe-Pierceable Cap:\u003c\/strong\u003e Direct syringe access through the cap minimizes aerosol generation and sample exposure compared to fully opening the tube for each transfer.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eGraduated at 0.1, 0.3, 0.5 mL:\u003c\/strong\u003e Clear volume markings allow rapid visual confirmation of fill level — reduces pipetting errors in sub-microliter workflows.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003ePack of 1,000:\u003c\/strong\u003e High-count pack designed for laboratory stock programs — reduces reorder frequency and per-tube cost for high-consumption workflows.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHS4422\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeathrow Scientific\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVolume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNatural (translucent)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax RCF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15,000 × g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGraduations\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1, 0.3, 0.5 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCap Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAttached flat snap cap (syringe-pierceable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWriting Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFrosted (permanent marker compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDNase-free, RNase-free, Pyrogen-free\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutoclavable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity per Pack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cul class=\"marker:text-quiet list-disc\"\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eEnzyme reaction setup and storage — small-volume aliquoting of restriction enzymes, ligases, and polymerases where DNase\/RNase-free certification is essential\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePCR and qPCR reagent preparation — holding master mix components, primers, and probes at the 0.5 mL scale during reaction assembly\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eProtein and peptide storage — small-volume aliquots of antibodies, antigens, and recombinant proteins where sample integrity through freeze-thaw is critical\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eHigh-speed pelleting of small cell or bead samples at up to 15,000 × g in standard bench-top microcentrifuges\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eWhat is the difference between the 0.5 mL and 1.5 mL Heathrow microfuge tubes?\u003cbr\u003e\u003c\/strong\u003eBoth are certified DNase\/RNase\/Pyrogen-free polypropylene with attached snap caps and syringe-pierceable caps. The key differences are volume capacity (0.5 mL vs 1.5 mL), max RCF (15,000 × g vs 18,000 × g), graduation marks, and pack size (1,000 vs 500). Choose based on your working volume — 0.5 mL tubes are ideal for enzyme aliquots and micro-reactions; 1.5 mL tubes suit larger sample volumes and higher-speed applications.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eDoes the frosted writing area work with all permanent markers?\u003cbr\u003e\u003c\/strong\u003eYes. The frosted polypropylene surface accepts markings from standard laboratory permanent markers including Sharpie® and equivalent brands. Markings are resistant to handling and brief cold storage but may fade under extended cryogenic conditions — consider tube labels for long-term -80°C storage applications.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eAre these tubes compatible with standard 0.5 mL tube racks?\u003cbr\u003e\u003c\/strong\u003eYes. The HS4422 tubes have standard outer diameter geometry compatible with all 0.5\/1.5\/2.0 mL microcentrifuge tube racks, including floating racks, benchtop microtube racks, and reversible PCR racks.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eWhat does Pack of 1,000 include — are they individually bagged?\u003cbr\u003e\u003c\/strong\u003eEach order contains 1,000 individual 0.5 mL microcentrifuge tubes in bulk packaging. This pack size is optimized for laboratory stock programs and reduces per-tube cost compared to smaller quantity orders.\u003c\/p\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eQuality Assurance\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eHeathrow Scientific HS4422 microcentrifuge tubes are lot-certified DNase-free, RNase-free, and Pyrogen-free. Manufactured from virgin polypropylene and tested to confirm 15,000 × g structural integrity. The frosted writing area is quality-checked for consistent marker adhesion across the full tube body surface.\u003c\/p\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eAcademic and Institutional Pricing\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eLabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.\u003c\/p\u003e","brand":"Heathrow Scientific","offers":[{"title":"Pack of 1000","offer_id":48075649319144,"sku":"HS4422","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/unnamed_3cb00e7f-825d-4046-a0a6-4f22be588ad3.jpg?v=1771817200","url":"https:\/\/labsupplies.com\/products\/heathrow-microfuge-tubes-0-5ml","provider":"LabSupplies.com","version":"1.0","type":"link"}