96-Position Microcentrifuge Tube Rack — 1.5 mL & 2.0 mL, Polypropylene, Blue, 5/Pack (240-6388-B30)
These 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.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 240-6388-B30 |
| Configuration | 96 positions, 8 × 12 grid |
| Well Spacing | 9 mm center-to-center (SBS microplate footprint) |
| Compatible Tube Formats | 1.5 mL and 2.0 mL microcentrifuge tubes (11 mm OD) |
| Material | Polypropylene (PP) |
| Color | Blue |
| Compatible Lid | 300-6388 PPC Natural (sold separately, 5/Pack) |
| Sterility | Non-Sterile |
| Pack Size | 5/Pack |
| Autoclave Compatibility | Yes — 121°C / 15 psi |
| UV Decontamination | Compatible with standard 254 nm UV cycle |
| BPA / Phthalates | BPA-free; no phthalate plasticizers |
| Country of Origin | USA |
Applications
- PCR setup and reaction staging: the SBS-footprint grid allows 96-channel pipettors to address tube positions directly, reducing transfer steps
- Sample storage and archival organization of patient specimens, cell lysates, or purified nucleic acids in 1.5 mL or 2.0 mL tubes
- Centrifuge staging and post-spin tube management in clinical and research workflows
- Color-coded laboratory organization: assign rack colors by tube type, experiment, or user to eliminate mix-up errors in shared-instrument environments
- Automated liquid-handling integration with robotic tube handlers that address microcentrifuge tubes in plate coordinates
- UV decontamination cycles in biological safety cabinets and clean-bench environments between experimental runs
Compatibility
The 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.
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers and saline solutions | Excellent |
| Dilute acids and bases | Excellent |
| Ethanol and isopropanol (<70%) | Good — suitable for surface disinfection |
| Common laboratory disinfectants (bleach, quaternary ammonium) | Good — short-term contact |
| Acetone / chloroform / aromatic solvents | Not recommended |
| Autoclave (121°C / 15 psi steam) | Compatible |
Quality & Procurement
Made 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.
Frequently Asked Questions
Will these racks hold both 1.5 mL and 2.0 mL tubes?
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.
Are these racks autoclavable?
Yes — 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.
Is a lid available for dust protection and stacking?
Yes — 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.
Can these racks be used with automated liquid-handling platforms?
Because 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.