Globe Scientific Diamond 5.0 mL Midi Centrifuge Tubes, Polypropylene, Graduated — Snap & Screw Cap, Sterile/RNase-Free, 200–500/Pack
The Diamond Midi Centrifuge Tube bridges the gap between standard microcentrifuge and 15 mL conical formats, giving bench scientists a 5.0 mL graduated polypropylene vessel ideal for sample aliquoting, nucleic acid prep, and cell pellet collection. Molded from chemical-resistant PP with clear volume markings, this family covers attached snap, locking snap, and assembled screw-cap closures in sterile and certified nuclease-free grades.
Technical Specifications
| Product Type | Diamond Midi Centrifuge Tube |
| Volume/Size | 5.0 mL |
| Material | Polypropylene (PP) |
| Closure/Cap | Attached snap, attached locking snap, or assembled screw cap |
| Graduation | Graduated |
| Sterility | Sterile, RNase/DNase/Pyrogen-certified, or standard (varies by option) |
| Pack Size | 200/pack or 500/pack (see options) |
Available Options
| Natural, Attached Snap, Sterile, 200/Unit (20/Bag, 10 Bags) | 111578S | $66.00 |
| Natural, Attached Locking Snap, RNase/DNase/Pyr Certified, 500/Case | 111582LK | $40.50 |
| Amber, Attached Snap, 200/Case (50/Bag, 4 Bags) | 111578A | $60.00 |
| Blue Screw Cap, Sterile, 500/Case (25/Rack, 20 Racks) | 111580BRS | $157.00 |
| Red Screw Cap, Sterile, 500/Case (25/Rack, 20 Racks) | 111580RS | $157.00 |
Applications
- Aliquoting and storage of buffers, reagents, and patient samples
- DNA and RNA extraction protocols requiring certified nuclease-free plastics
- Cell pellet collection and resuspension after centrifugation
- Light-sensitive sample protection using amber tubes
- Secure transport of liquids with locking snap or leak-resistant screw caps
- Racked workflows where pre-organized tubes speed bench setup
Quality & Procurement
labsupplies.com is an authorized Globe Scientific dealer shipping from US inventory. Every bag, case, and rack carries lot numbers supporting full traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Certified options ship with documentation confirming RNase, DNase, and pyrogen status. Institutional and grant-funded tiered pricing is available — contact procurement for volume quotes.
Frequently Asked Questions
What is the difference between snap cap and screw cap options?
Attached snap caps open quickly for high-throughput pipetting, while assembled screw caps provide a more secure seal for transport and storage. Locking snap caps add a tab that resists accidental opening during centrifugation.
Which options are certified RNase/DNase-free?
SKU 111582LK is lot certified for RNase, DNase, and pyrogen, making it suited to nucleic acid work. The sterile snap and screw-cap options (111578S, 111580BRS, 111580RS) are gamma-sterile but not separately nuclease-certified.
Are the screw-cap tubes supplied in racks?
Yes. Both blue (111580BRS) and red (111580RS) screw-cap tubes ship 25 per cardboard rack, 20 racks per case, for 500 tubes total ready for immediate bench use.
Why choose the amber tubes?
Amber polypropylene shields light-sensitive contents such as certain reagents, fluorophores, and photodegradable compounds. SKU 111578A supplies 200 amber tubes per case in 50-tube bags.