You cannot visually confirm contamination, and the risk of introducing bacteria into your reconstituted peptide is not worth the cost of a replacement vial
Decision Framework A Note on Buying Multiple Smaller Vials If you're uncertain about consumption rate, two 10mg vials offers flexibility reconstitute one, keep the other lyophilized (which stores far longer than reconstituted material) until needed
Type I neutral glass bottle with volume of 10 ml, butyl stopper for sealing the bottles, aluminum top cap, 25, 50 and 100 dose diluent bottle, 25, 50 ml and 100 ml Type II glass or plastic bottles, respectively bottle capping made of butyl stopper and aluminum top cap are used
(2017) Glutaminolysis: a hallmark of cancer metabolism, Annu