{"product_id":"caplugs-240-6388-b30-96-well-microcentrifuge-tube-rack-pp-blue","title":"1.5 mL Tube Racks, HDPE, Blue, Eppendorf\/Thermo Fisher Compatible — 240-6388-B30 | 5\/Pack | Caplugs® Evergreen","description":"\u003ch2\u003e96-Position Microcentrifuge Tube Rack — 1.5 mL \u0026amp; 2.0 mL, Polypropylene, Blue, 5\/Pack (240-6388-B30)\u003c\/h2\u003e\n\u003cp\u003eThese 96-position polypropylene microcentrifuge tube racks organize standard 1.5 mL and 2.0 mL tubes in an 8 × 12 grid with 9 mm center-to-center well spacing that matches the SBS microplate footprint, enabling seamless integration with automated liquid-handling platforms and 96-channel pipetting workstations. Supplied non-sterile in a pack of five, the blue color allows color-coded bench organization in multi-user and multi-project laboratory environments. A compatible rack lid (300-6388, sold separately) provides dust protection and enables stacking of loaded racks for compact storage.\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\u003e240-6388-B30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e96 positions, 8 × 12 grid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWell Spacing\u003c\/td\u003e\n\u003ctd\u003e9 mm center-to-center (SBS microplate footprint)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Tube Formats\u003c\/td\u003e\n\u003ctd\u003e1.5 mL and 2.0 mL microcentrifuge tubes (11 mm OD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolypropylene (PP)\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\u003eCompatible Lid\u003c\/td\u003e\n\u003ctd\u003e300-6388 PPC Natural (sold separately, 5\/Pack)\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\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e5\/Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoclave Compatibility\u003c\/td\u003e\n\u003ctd\u003eYes — 121°C \/ 15 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Decontamination\u003c\/td\u003e\n\u003ctd\u003eCompatible with standard 254 nm UV cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBPA \/ Phthalates\u003c\/td\u003e\n\u003ctd\u003eBPA-free; no phthalate plasticizers\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 reaction staging: the SBS-footprint grid allows 96-channel pipettors to address tube positions directly, reducing transfer steps\u003c\/li\u003e\n\u003cli\u003eSample storage and archival organization of patient specimens, cell lysates, or purified nucleic acids in 1.5 mL or 2.0 mL tubes\u003c\/li\u003e\n\u003cli\u003eCentrifuge staging and post-spin tube management in clinical and research workflows\u003c\/li\u003e\n\u003cli\u003eColor-coded laboratory organization: assign rack colors by tube type, experiment, or user to eliminate mix-up errors in shared-instrument environments\u003c\/li\u003e\n\u003cli\u003eAutomated liquid-handling integration with robotic tube handlers that address microcentrifuge tubes in plate coordinates\u003c\/li\u003e\n\u003cli\u003eUV decontamination cycles in biological safety cabinets and clean-bench environments between experimental runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe 9 mm center-to-center well spacing accommodates standard 11 mm OD microcentrifuge tubes from Eppendorf®, Thermo Fisher Scientific, Corning®, and other major suppliers in both the 1.5 mL and 2.0 mL formats. The 8 × 12 grid matches the standard SBS microplate footprint, making these racks directly compatible with automated liquid-handling platforms and 96-channel pipetting workstations that address tubes in plate coordinates. Researchers requiring a protective cover should pair these racks with the 300-6388 PPC Natural lid, sold separately in a matching 5\/Pack configuration. Additional color options — Natural, Green, Red, and Yellow — are available under companion part numbers for laboratories that require a complete color-coding scheme sourced from a single vendor.\u003c\/p\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 and saline solutions\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute acids and bases\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthanol and isopropanol (\u0026lt;70%)\u003c\/td\u003e\n\u003ctd\u003eGood — suitable for surface disinfection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon laboratory disinfectants (bleach, quaternary ammonium)\u003c\/td\u003e\n\u003ctd\u003eGood — short-term contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetone \/ chloroform \/ aromatic solvents\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoclave (121°C \/ 15 psi steam)\u003c\/td\u003e\n\u003ctd\u003eCompatible\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 racks are produced from virgin polypropylene under ISO 9001 quality management, ensuring consistent molding dimensions and reliable tube retention across every pack. The resin is BPA-free and free of phthalate plasticizers, supporting compliance requirements in clinical and regulated research environments. LabSupplies.com is an authorized dealer of Caplugs® Evergreen laboratory consumables and ships from USA inventory, with stocking quantities available for institutional purchase orders, blanket orders, and grant-funded procurement. Volume pricing is available for high-throughput laboratories requiring multiple packs per order cycle.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill these racks hold both 1.5 mL and 2.0 mL tubes?\u003c\/strong\u003e\u003cbr\u003eYes — the 9 mm center-to-center well spacing is designed for standard 11 mm OD microcentrifuge tubes, which covers both the 1.5 mL and 2.0 mL formats from all major suppliers including Eppendorf® and Thermo Fisher Scientific.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre these racks autoclavable?\u003c\/strong\u003e\u003cbr\u003eYes — the polypropylene construction is compatible with standard autoclave cycles at 121°C and 15 psi, allowing full decontamination between experiments. The racks are also compatible with standard 254 nm UV decontamination cycles for use in biological safety cabinets.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs a lid available for dust protection and stacking?\u003c\/strong\u003e\u003cbr\u003eYes — the 300-6388 PPC Natural rack lid is sold separately in a 5\/Pack configuration and fits these racks for dust protection during storage. Lidded racks can also be stacked to conserve bench and refrigerator space when storing large sample sets.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan these racks be used with automated liquid-handling platforms?\u003c\/strong\u003e\u003cbr\u003eBecause the 8 × 12 grid matches the standard SBS microplate footprint with 9 mm well spacing, these racks are compatible with robotic tube handlers and 96-channel pipetting workstations that address tubes in plate coordinates — verify your instrument's tube-holder specifications before integrating into an automated workflow.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"96-Position Microcentrifuge Tube Rack, Polypropylene, Blue, 5\/Pack — Caplugs® Evergreen 240-6388-B30\",\"sku\":\"240-6388-B30\",\"mpn\":\"240-6388-B30\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene (PP)\",\"color\":\"Blue\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"41.10\",\"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\":\"Will these racks hold both 1.5 mL and 2.0 mL tubes?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes — the 9 mm center-to-center well spacing is designed for standard 11 mm OD microcentrifuge tubes, which covers both the 1.5 mL and 2.0 mL formats from all major suppliers including Eppendorf® and Thermo Fisher Scientific.\"}},{\"@type\":\"Question\",\"name\":\"Are these racks autoclavable?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes — the polypropylene construction is compatible with standard autoclave cycles at 121°C and 15 psi, allowing full decontamination between experiments. 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