2.0 mL Freestanding Cryogenic Tubes — MST™ PPC, Natural, Printed Graduations (220-3953-PR080)
These MST™ 2.0 mL freestanding flat-bottom cryogenic tubes are constructed from polypropylene copolymer (PPC) — a material that maintains flexibility and crack resistance at cryogenic temperatures where standard polypropylene homopolymer becomes brittle — and are rated for the full cryogenic range from −80 °C ULT freezers through liquid nitrogen storage at −196 °C. Printed graduation markings allow direct volume estimation during sample addition and aliquoting without removing the tube from storage, and the flat-bottom design lets tubes stand upright on the bench without a rack. Supplied non-sterile in a sealed 1000/Bag pack, part number 220-3953-PR080 is well-suited to high-throughput biobanking, biospecimen archiving, and cell storage workflows.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 220-3953-PR080 |
| Volume | 2.0 mL |
| Tube Type | MST™ Cryogenic Freestanding |
| Bottom Style | Flat Bottom |
| Cap Style | Snap Cap |
| Graduations | Printed |
| Cryogenic Rating | LN₂ (−196 °C) / Vapor-Phase N₂ / −80 °C ULT |
| Material | Polypropylene Copolymer (PPC) |
| Color | Natural |
| BPA / Phthalate Free | Yes |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Biobanking and long-term cryogenic biospecimen archiving in LN₂ or vapor-phase nitrogen dewars
- Cell line and primary cell cryopreservation in −80 °C ULT freezers
- DNA, RNA, and genomic library long-term cryogenic storage
- Serum and plasma aliquot cryopreservation for clinical and translational research
- Tissue sample archiving and pathology specimen cryobanking
- Dry ice shipment of cryogenic samples between facilities
- CAP/CLIA and ISO 15189 workflows requiring lot-traceable consumables
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol | Compatible |
| Isopropanol | Compatible |
| Acetonitrile | Compatible |
| Aromatic / chlorinated solvents | Limited — not recommended for prolonged contact |
Quality & Procurement
Made in USA at Caplugs® Evergreen ISO-certified manufacturing facilities, these MST™ cryogenic tubes are produced from virgin-grade, FDA-registered PPC resin that is BPA-free and phthalate-free. The sealed 1000/Bag format preserves product integrity from warehouse receipt through point-of-use. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with tiered volume pricing available for institutional purchasers, biobanks, and grant-funded laboratories.
Frequently Asked Questions
Are these tubes rated for immersion in liquid nitrogen?
Yes — the PPC construction is rated for the full cryogenic range, including direct liquid nitrogen immersion at −196 °C and vapor-phase nitrogen storage, as well as −80 °C ULT freezer use.
Why use PPC instead of standard polypropylene for cryogenic storage?
Polypropylene homopolymer becomes brittle and prone to cracking below approximately −40 °C. Polypropylene copolymer (PPC) retains flexibility and impact resistance at cryogenic temperatures, making it the appropriate material choice for LN₂ and ULT applications.
Do the printed graduations remain legible after repeated freeze-thaw cycles?
Yes — the printed graduation markings are designed to withstand cryogenic temperatures and repeated freeze-thaw cycling, maintaining legibility through long-term biobank storage.
Are these tubes supplied sterile?
No — they are supplied non-sterile in 1000/Bag packaging. Laboratories requiring sterile cryogenic tubes should evaluate the appropriate sterile offering from the Caplugs® Evergreen MST™ line.