2.0 mL Freestanding Flat-Bottom Cryogenic Tubes — PPC, Natural, 1000/Bag (220-3953-080)
These MST™ 2.0 mL cryogenic tubes feature a freestanding flat-bottom design and are molded from polypropylene copolymer (PPC) for reliable performance across the full cryogenic range — from −80 °C ultra-low temperature freezers through liquid nitrogen storage at −196 °C. Supplied non-sterile in sealed 1000/Bag packaging, part number 220-3953-080 is well suited for biobanking, cell line archiving, and clinical biospecimen programs that require consistent tube geometry and cap seal integrity at scale.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 220-3953-080 |
| Volume | 2.0 mL |
| Tube Type | MST™ Cryogenic Freestanding Tube |
| Bottom Style | Flat Bottom (Freestanding) |
| Cap Style | Snap Cap |
| Cryogenic Rating | LN₂ (−196 °C) / Vapor-Phase N₂ / −80 °C ULT |
| Graduations | None |
| Material | Polypropylene Copolymer (PPC) |
| Color | Natural |
| Sterility | Non-Sterile |
| BPA / Phthalate Free | Yes |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Long-term biobanking and biospecimen archiving in liquid nitrogen or vapor-phase nitrogen dewars
- Cell line cryopreservation and storage at −80 °C ULT or −196 °C LN₂
- DNA, RNA, and genomic material storage requiring cryogenic temperature stability
- Serum and plasma aliquot cryopreservation for clinical and translational research
- Tissue sample archiving and clinical biospecimen management under CAP/CLIA/ISO 15189 programs
- Dry ice shipment of frozen biological samples
- Benchtop aliquoting workflows where freestanding placement eliminates the need for a rack
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol | Good |
| Isopropanol | Good |
| Acetonitrile | Good |
| Aromatic solvents (toluene, xylene, etc.) | Not recommended — verify before use |
| Chlorinated solvents (chloroform, DCM) | Not recommended |
Quality & Procurement
Made in USA, these MST™ cryogenic tubes are manufactured by Caplugs® Evergreen at ISO-certified facilities using virgin-grade, FDA-registered PPC resin — free of BPA, phthalates, and latex. PPC construction is a deliberate material choice: unlike standard PP homopolymer, which can become brittle below −40 °C, PPC maintains flexibility and crack resistance at cryogenic temperatures, protecting irreplaceable samples during freeze-thaw cycles and mechanical handling. Each 1000/Bag lot ships with full lot-number and manufacturing-date traceability to support CAP, CLIA, and ISO 15189 quality programs. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with volume pricing available for institutional purchasing offices and grant-funded laboratories.
Frequently Asked Questions
Are these tubes sterile?
No — the 2.0 mL MST™ cryogenic tubes are supplied non-sterile in sealed 1000/Bag packaging. For applications requiring sterility, the tubes should be sterilized according to your facility's validated protocol or sterile alternatives should be sourced.
Why use PPC instead of standard polypropylene for cryogenic storage?
Standard PP homopolymer can become brittle and prone to cracking when subjected to temperatures below approximately −40 °C. Polypropylene copolymer (PPC) retains flexibility and impact resistance down to −196 °C (liquid nitrogen), making it the preferred material for LN₂ and ultra-low temperature applications where tube failure could compromise irreplaceable samples.
Do the tubes have volume graduation markings?
No — these tubes do not include graduation markings. Volume estimation by visual inspection is not supported; volumes should be measured prior to dispensing or by weight if exact quantities are required.
Are these tubes suitable for liquid-phase liquid nitrogen submersion?
Yes — the cryogenic rating includes direct liquid nitrogen immersion at −196 °C as well as vapor-phase nitrogen storage. Lot-level quality controls verify consistent wall thickness and snap-cap seal integrity to support both storage modes.