This 1.2mL sterile polypropylene cryogenic vial with bar code is ideal for automated data collection sample inventory or to mask the identity of samples. Code 128-numeric barcode is printed in black on white background. Readable numeric code is printed below the bar code. Guaranteed to have no duplicate numbers. Barcode is resistant to isopropyl alcohol 100% butanol 10-20% DMSO 5% bleach 10% acetic and hydrochloric acids and 10% NaOH. Certified sterile noncytotoxic and nonpyrogenic. Cryogenic vials are packed in easy-open bags inside cases with easy access top opening. RNase/DNase free. Material: polypropylene with silicone gasket. O.D.: 13.5mm (0.5 inch). Height: 38.1mm (1.50 inch). Capacity: 1.2mL. 25/Pack; 500/Case. Nalgene® #: 5001-0012.