2.0 mL MST™ Cryogenic Conical-Bottom Tubes — PPC, Natural, Printed Graduations (220-3952-PR080)
These 2.0 mL MST™ cryogenic conical-bottom tubes from Caplugs® Evergreen are constructed from polypropylene copolymer (PPC) — a material that maintains flexibility and crack resistance at temperatures where standard polypropylene homopolymer becomes brittle — making them suitable for the full cryogenic range from −80 °C ultra-low temperature freezers through liquid nitrogen storage at −196 °C. Supplied non-sterile with printed graduation markings in 1000/Bag packaging, part number 220-3952-PR080 is well suited to biobanking, cell line storage, and clinical biospecimen workflows that demand reliable long-term cryogenic performance.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 220-3952-PR080 |
| Volume | 2.0 mL |
| Tube Type | MST™ Cryogenic Conical Tube |
| Bottom Style | Conical |
| Cap Style | Snap Cap |
| Cryogenic Rating | LN2 / Vapor-Phase N2 / −80 °C ULT |
| Graduations | Printed |
| Material | Polypropylene Copolymer (PPC) |
| Color | Natural |
| Sterility | Non-Sterile |
| BPA / Phthalate Free | Yes |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Liquid nitrogen (LN2) and vapor-phase nitrogen cryogenic storage at −196 °C
- Ultra-low temperature (−80 °C ULT) freezer archiving of DNA, RNA, serum, and plasma aliquots
- Biobanking and long-term cell line, tissue sample, and clinical biospecimen cryopreservation
- Dry ice shipment of temperature-sensitive biological materials
- Cell pellet recovery after centrifugation — the conical bottom concentrates sample at the tube tip for complete microvolume retrieval
- Volume monitoring during aliquoting and cryogenic fill level tracking via freeze-thaw-resistant printed graduations
- 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 solvents (toluene, xylene) | Limited — not recommended for prolonged contact |
| Chlorinated solvents (chloroform, DCM) | Not recommended |
Quality & Procurement
Made in USA at Caplugs® Evergreen's ISO-certified manufacturing facilities, these MST™ cryogenic tubes are produced from virgin-grade, FDA-registered PPC resin that is BPA-free and phthalate-free. Sealed 1000/Bag packaging 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 research programs.
Frequently Asked Questions
Are these tubes rated for direct liquid nitrogen immersion?
Yes — the PPC construction is rated for the full cryogenic range including direct liquid nitrogen (LN2) immersion at −196 °C as well as vapor-phase nitrogen and −80 °C ULT freezer storage.
Why use PPC instead of standard polypropylene for cryogenic tubes?
Polypropylene homopolymer becomes brittle below approximately −40 °C, increasing the risk of cracking during cryogenic handling. Polypropylene copolymer (PPC) retains flexibility at cryogenic temperatures, reducing breakage and the associated risk of sample loss.
Will the printed graduations remain legible after repeated freeze-thaw cycles?
Yes — the printed graduation markings on these tubes are designed to withstand cryogenic temperatures and repeated freeze-thaw cycles, maintaining legibility through long-term biobank storage.
Are these tubes supplied sterile?
No — they are supplied non-sterile. For workflows requiring sterile tubes, please contact LabSupplies.com to inquire about sterile MST™ cryogenic tube options.