0.5 mL Conical Microcentrifuge Tubes with Tethered Cap — PPC, Yellow, 1000/Bag
These 0.5 mL conical microcentrifuge tubes feature a permanently attached tethered cap, molded graduation markings, and yellow polypropylene copolymer (PPC) construction — supplied non-sterile in 1000/Bag packaging for high-throughput bench and clinical workflows. PPC construction delivers greater flexibility and impact resistance than standard PP homopolymer, reducing the risk of cracking during high-speed centrifuge runs. The conical bottom geometry concentrates pellets at the tip for complete microvolume recovery with minimal dead volume, making part number 214-3425-Y80 well suited for molecular biology, clinical chemistry, and sample archiving applications.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 214-3425-Y80 |
| Volume | 0.5 mL |
| Bottom Style | Conical |
| Cap Style | Tethered (permanently attached) |
| Graduation | Molded volume markings |
| Material | Polypropylene Copolymer (PPC) |
| Color | Yellow |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| BPA / Phthalate Free | Yes |
| Country of Origin | USA |
Applications
- PCR setup and enzyme reaction staging requiring precise microvolume handling
- DNA and RNA extraction with complete pellet recovery from the conical tip
- Cell pelleting and wash steps in tissue culture and cytology workflows
- Clinical microvolume sample processing where lot traceability supports CAP/CLIA compliance
- Color-coded sample organization in multi-tube microcentrifuge rack systems — yellow enables rapid visual differentiation by sample type or processing stage
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol / isopropanol / ethanol | Good |
| Acetonitrile | Good |
| Aromatic / chlorinated solvents | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen microcentrifuge tubes are manufactured from BPA-free, phthalate-free PPC resin with lot-level quality controls that verify consistent conical geometry, wall thickness, and tethered cap hinge durability across every 1000-tube bag. Sealed bag packaging maintains product integrity from warehouse receipt through point-of-use, and lot traceability supports the documentation requirements of CAP-, CLIA-, and ISO 15189-accredited laboratories. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with tiered volume pricing available for institutional and grant-funded labs.
Frequently Asked Questions
Are these microcentrifuge tubes sterile?
No — they are supplied non-sterile in 1000/Bag packaging. For applications requiring sterility, consider DNase/RNase-free or sterile options; these tubes are intended for standard molecular biology and clinical chemistry workflows where sterility is not a requirement.
What is the advantage of PPC over standard polypropylene for microcentrifuge tubes?
Polypropylene copolymer (PPC) has greater flexibility and impact resistance than standard PP homopolymer. This reduces the risk of tube cracking or shattering during high-speed microcentrifuge runs, which is especially important when processing small, irreplaceable samples.
Does the tethered cap stay attached during centrifugation?
Yes — the cap is permanently attached via a flexible hinge and is designed to remain closed and secure during centrifuge runs. The tethered design also eliminates cap loss during high-throughput pipetting and reduces the risk of mix-ups or cross-contamination between open tubes on the bench.
Why are these tubes yellow, and are other colors available?
The yellow color of part number 214-3425-Y80 enables rapid visual identification and sample-type differentiation when multiple tube types are in use simultaneously on a rack or in a rotor. LabSupplies.com carries additional Caplugs® Evergreen microcentrifuge tube colors and configurations — contact us or browse the catalog for current options.