Sub-microliter work demands tubes built for it. The Heathrow Scientific HS4422 0.5 mL Microcentrifuge Tube is engineered for the precise handling of small-volume samples where contamination, evaporation, and labeling errors are the primary risks. Certified DNase, RNase, and Pyrogen free from production lot to lot, these natural-color polypropylene tubes are ready for molecular biology, enzyme assays, and any application where nuclease contamination would compromise results.
The frosted writing area accepts permanent marker labeling directly on the tube body — no label slippage, no secondary labeling step. The attached snap cap opens one-handed and is syringe-pierceable for direct sampling without exposure. Graduated at 0.1, 0.3, and 0.5 mL for fast visual volume confirmation. Rated to 15,000 × g and fully autoclavable. Supplied in a pack of 1,000 for high-throughput lab consumption.
Features and Benefits
Certified DNase, RNase, and Pyrogen Free: Lot-certified clean for molecular biology applications — eliminates contamination risk in sensitive enzyme reactions, PCR setups, and RNA-based workflows.
Frosted Writing Area: Permanent marker-receptive surface directly on the tube body eliminates the need for adhesive labels — markings stay put through centrifugation, freezing, and handling.
15,000 × g Rated: Handles high-speed centrifuge applications for small-volume sample preparation — suitable for protein precipitation, pelleting, and column-based purification protocols.
Attached Snap Cap - One-Handed Use: Integrated flat cap opens and closes with one hand — maintains sample security during rapid, repetitive tube handling in high-throughput settings.
Syringe-Pierceable Cap: Direct syringe access through the cap minimizes aerosol generation and sample exposure compared to fully opening the tube for each transfer.
Graduated at 0.1, 0.3, 0.5 mL: Clear volume markings allow rapid visual confirmation of fill level — reduces pipetting errors in sub-microliter workflows.
Pack of 1,000: High-count pack designed for laboratory stock programs — reduces reorder frequency and per-tube cost for high-consumption workflows.
Specifications
| Property | Value |
|---|---|
| SKU | HS4422 |
| Brand | Heathrow Scientific |
| Volume | 0.5 mL |
| Color | Natural (translucent) |
| Material | Polypropylene |
| Max RCF | 15,000 × g |
| Height | 32 mm |
| Graduations | 0.1, 0.3, 0.5 mL |
| Cap Style | Attached flat snap cap (syringe-pierceable) |
| Writing Area | Frosted (permanent marker compatible) |
| Certifications | DNase-free, RNase-free, Pyrogen-free |
| Autoclavable | Yes |
| Quantity per Pack | 1,000 |
| Country of Origin | China |
Laboratory Applications
Enzyme reaction setup and storage — small-volume aliquoting of restriction enzymes, ligases, and polymerases where DNase/RNase-free certification is essential
PCR and qPCR reagent preparation — holding master mix components, primers, and probes at the 0.5 mL scale during reaction assembly
Protein and peptide storage — small-volume aliquots of antibodies, antigens, and recombinant proteins where sample integrity through freeze-thaw is critical
High-speed pelleting of small cell or bead samples at up to 15,000 × g in standard bench-top microcentrifuges
Frequently Asked Questions
What is the difference between the 0.5 mL and 1.5 mL Heathrow microfuge tubes?
Both are certified DNase/RNase/Pyrogen-free polypropylene with attached snap caps and syringe-pierceable caps. The key differences are volume capacity (0.5 mL vs 1.5 mL), max RCF (15,000 × g vs 18,000 × g), graduation marks, and pack size (1,000 vs 500). Choose based on your working volume — 0.5 mL tubes are ideal for enzyme aliquots and micro-reactions; 1.5 mL tubes suit larger sample volumes and higher-speed applications.
Does the frosted writing area work with all permanent markers?
Yes. The frosted polypropylene surface accepts markings from standard laboratory permanent markers including Sharpie® and equivalent brands. Markings are resistant to handling and brief cold storage but may fade under extended cryogenic conditions — consider tube labels for long-term -80°C storage applications.
Are these tubes compatible with standard 0.5 mL tube racks?
Yes. The HS4422 tubes have standard outer diameter geometry compatible with all 0.5/1.5/2.0 mL microcentrifuge tube racks, including floating racks, benchtop microtube racks, and reversible PCR racks.
What does Pack of 1,000 include — are they individually bagged?
Each order contains 1,000 individual 0.5 mL microcentrifuge tubes in bulk packaging. This pack size is optimized for laboratory stock programs and reduces per-tube cost compared to smaller quantity orders.
Quality Assurance
Heathrow Scientific HS4422 microcentrifuge tubes are lot-certified DNase-free, RNase-free, and Pyrogen-free. Manufactured from virgin polypropylene and tested to confirm 15,000 × g structural integrity. The frosted writing area is quality-checked for consistent marker adhesion across the full tube body surface.
Academic and Institutional Pricing
LabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.