Stellar Scientific CocoaCutie 5mL Centrifuge Tubes, OPAQUE, Sterile, RNase and DNase Free, Foam Racked, 500/CS

 Once you quit laughing at the name, you will realize how revolutionary this little tube is! 

When people in the research community say “groundbreaking”, they are usually describing a dramatic improvement in technique or approach. 

It is not the sort of term you would think should be applied to a humble piece of plastic. 

But that is exactly how people are describing this new conical tube. 

Here are just some of the ways your colleagues are using this remarkable tube: 

• Master mixes larger than 2mL
• Immunoprecipitations – It is much easier to get total bead coverage
• Collecting blood and urine
• Storing tissue and viruses – Think of how much precious -80 space is wasted on 3mL of virus in a 15mL tube!
• Sample incubation – The screw-cap offers a leak-proof seal
• Preparing injections – You cannot get the shoulders of a syringe into a 15mL tube
• And more!

Very popular in the CRO and CRM community where samples are prepared in larger volumes than the typical research lab

Black-Opaque for storing light-sensitve samples

Other important features are: 

• 20mm (OD) caps that seal smoothly and completely with a single 360° turn.
• Safe for use from -86°C to 110°C - Autoclavable
• Uses 60% less storage space than 15mL tubes
• The 16mm tube diameter is identical to a 15ml tube. NO NEED to purchase additional equipment or adapters
• Reduced pipette-shaft contamination concerns
• Made from low-binding virgin polypropylene and are certified RNase & DNase and Human Pyrogen free
• Sterile tubes are also pyrogen free
• Perform high speed spins up to 25,000 xg (when fully supported with these special adapters) 4,000xg when suspended in rotor 
• Dual graduations at every .2 and .5mL 
• Leakproof "one turn" cap
• Height without cap/rim: 54mm
• Height with cap: 64mm

Its the tube that is good for the planet, and good for your lab!