2.0 mL CryoSure® Round-Bottom Cryogenic Vials — PPC, Natural, 1000/Bag (220-3947-080)
These 2.0 mL CryoSure® cryogenic vials feature a round-bottom design and are constructed from polypropylene copolymer (PPC), a resin engineered to maintain flexibility and crack resistance across the full cryogenic temperature range — from −80 °C ultra-low temperature (ULT) freezers through liquid nitrogen (LN₂) storage at −196 °C. Supplied non-sterile in 1000/Bag bulk packaging, part number 220-3947-080 is well suited to high-throughput biobanking, cell line archiving, and clinical biospecimen programs that require consistent vial geometry and reliable cap seal integrity at scale.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 220-3947-080 |
| Volume | 2.0 mL |
| Bottom Style | Round Bottom |
| Cap Style | Snap Cap |
| Cryogenic Rating | LN₂ / Vapor-Phase N₂ / −80 °C ULT |
| Material | Polypropylene Copolymer (PPC) |
| Color | Natural |
| Sterility | Non-Sterile |
| BPA / Phthalate Free | Yes |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Biobanking and long-term cell line archiving in LN₂ or vapor-phase nitrogen dewars
- DNA, RNA, and genomic library storage in −80 °C ULT freezers
- Serum, plasma, and whole-blood aliquot cryopreservation for clinical and translational research
- Tissue sample archiving and primary cell cryopreservation workflows
- Dry ice shipment of cryogenic biospecimens between sites
- Round-bottom rack–based sample management systems where spherical geometry concentrates sample for complete microvolume recovery after thawing
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol | Good |
| Isopropanol | Good |
| Acetonitrile | Good |
| Aromatic / chlorinated solvents | Not recommended — verify before use |
Quality & Procurement
Made in USA, these Caplugs® Evergreen CryoSure® vials are produced at ISO-certified manufacturing facilities from virgin-grade, FDA-compliant PPC resin that is BPA-free and phthalate-free. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory.
Frequently Asked Questions
Are these vials rated for immersion in liquid nitrogen?
Yes — the PPC construction of these vials is rated for liquid nitrogen (LN₂) at −196 °C as well as vapor-phase nitrogen and −80 °C ULT freezer storage. PPC maintains flexibility and crack resistance at cryogenic temperatures where standard polypropylene homopolymer becomes brittle, making it the preferred material for LN₂ applications.
Are the vials sterile?
No — they are supplied non-sterile in 1000/Bag bulk packaging. For workflows requiring sterility, aseptic technique or downstream sterilization steps should be applied as appropriate for your laboratory's SOPs.
What racks are compatible with this round-bottom format?
These vials are designed for use with round-bottom vial racks. Flat-bottom rack systems are not compatible with the round-bottom geometry, so confirm your existing racking infrastructure before ordering at volume.
