Nunc® CryoTubes® cryogenic vial, 1.8 mL, internal thread, round bottom, starfoot, free standing, capacity 1.8 mL, Internal thread, round bottom (self-standing star-foot); Synonym: cryogenic tubes, cryogenic vials; find null-V7884 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich.