Globe Scientific 6288 Polypropylene Centrifuge Tube with Attached Blue Flat Top Screw Cap, Sterile, Printed Graduation, Bag Pack, 50mL Capacity (Case of 500)

these vials work fine as long as you dont apply heat to them, we are a science lab and we transfer testing product into 50ml vials and incubate material to change the viscosity of it and run the material through GCMS equipment. after extensive testing we discovered these Vials under slight heat are releasing Ethalyn Oxide so if you plan to apply any type of heat to these or want to use them for sensitive research be certain to do extensive testing on the vials first

Do not purchase. They leak!!