If your peptide vial looks empty, that does not necessarily mean it is empty or underfilled. Peptides are often supplied in very small milligram quantities, and after freeze-drying, the material…
A 99% peptide purity result generally means that about 99% of the detected chromatographic signal was attributed to the main peptide peak under the specific test conditions. It does not…
The only reliable way to know how much peptide is actually in a vial is to measure it with an appropriate quantitative laboratory assay. The label tells you what the…
Bacteriostatic water is sterile water that contains a small amount of an antimicrobial preservative, most commonly benzyl alcohol. Often shortened to bac water, it is supplied as a multi-dose diluent,…
To reconstitute a peptide, you add a liquid diluent to the dried peptide in the vial so the contents dissolve into a usable solution. In plain English, reconstitution means turning…
A peptide COA is a Certificate of Analysis that reports laboratory testing performed on a peptide sample or batch. Depending on what was actually tested, the report may contain results…