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Research class
Consumables
Sterile solvents for returning lyophilised peptides to solution in the laboratory.
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About this class
Every peptide in the catalogue arrives as a lyophilised powder, and the first step in any experiment is to make a stock solution. Bacteriostatic water is sterile water preserved with 0.9% benzyl alcohol, the default multi-draw solvent. Acetic acid 0.6% is a sterile, mildly acidic solvent for the minority of peptides that dissolve poorly at neutral pH.
Choosing a reconstitution solvent explains which to use for which compound, how to work out a stock concentration, and how long solutions keep. The reconstitution calculator does the arithmetic. Both solvents are supplied for laboratory use only.
Questions
Which solvent should I use?
Bacteriostatic water suits most of the catalogue. A few peptides that carry little net charge at neutral pH dissolve more cleanly in dilute acetic acid. Our guide to reconstitution solvents lists which.