0.5 mL Conical Microcentrifuge Tubes with Tethered Cap — PPC, Red, 1000/Bag (214-3425-R80)
These 0.5 mL conical microcentrifuge tubes feature a permanently attached tethered cap and molded graduation markings, making them a dependable choice for PCR preparation, DNA/RNA extraction, enzyme reactions, and clinical microvolume sample processing. Constructed from polypropylene copolymer (PPC), which offers enhanced flexibility and impact resistance compared to standard PP homopolymer, the tubes resist cracking during high-speed centrifuge runs. Supplied non-sterile in sealed 1000/Bag packaging, part number 214-3425-R80 delivers lot-to-lot dimensional consistency for reliable rotor fit across standard microcentrifuge platforms.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 214-3425-R80 |
| Volume | 0.5 mL |
| Bottom Style | Conical |
| Cap Style | Tethered (permanently attached) |
| Graduation | Molded volume markings |
| Material | Polypropylene Copolymer (PPC) |
| Color | Red |
| Sterility | Non-Sterile |
| BPA / Phthalate Free | Yes |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- PCR and enzyme reaction setup requiring precise microvolume containment
- DNA and RNA extraction workflows benefiting from low dead-volume conical geometry for complete pellet recovery
- Cell pelleting and microvolume sample centrifugation at high speeds
- Clinical and diagnostic labs processing small-volume specimens with lot-traceable consumables
- Multi-tube rack workflows where red color coding enables fast visual identification and sample-type differentiation
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol / isopropanol / ethanol | Good — short-term contact |
| Acetonitrile | Good — short-term contact |
| Aromatic / chlorinated solvents | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen microcentrifuge tubes are manufactured from BPA-free, phthalate-free polypropylene copolymer resin with lot-level quality controls that verify consistent conical geometry, wall thickness, and tethered cap hinge durability across every bag of 1000 tubes. LabSupplies.com is an authorized dealer shipping from USA inventory, with tiered volume pricing available for high-throughput clinical, research, and institutional procurement teams.
Frequently Asked Questions
Are these microcentrifuge tubes sterile?
No — they are supplied non-sterile in sealed 1000/Bag packaging, which is appropriate for the vast majority of molecular biology, biochemistry, and general clinical workflows. If your protocol requires sterile tubes, please contact us for alternative options.
What is the advantage of polypropylene copolymer (PPC) over standard polypropylene?
PPC offers greater flexibility and impact resistance than standard PP homopolymer, which reduces the risk of cracking or shattering during high-speed microcentrifuge runs — a meaningful benefit when processing irreplaceable samples.
Will the tethered cap stay securely closed during centrifugation?
The cap is permanently attached via a flexible hinge and is designed to close securely for microcentrifuge use. As with any tethered-cap tube, verify your specific rotor and speed requirements against the tube's rated performance before running critical samples.
Why are the tubes red, and does color affect performance?
The red color facilitates rapid visual tube identification and sample-type differentiation in multi-tube rack workflows — particularly useful in high-throughput labs running parallel assays. The color is integral to the PPC material and does not affect chemical compatibility or optical clarity for visual volume estimation via the molded graduation markings.