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In this dry, sealed state, peptides are relatively resistant to degradation and can remain stable at -20C for 24 months or longer

Crawford NR, Duggal N, Chamberlain RH, Park SC, Sonntag VK, Dickman CA

For injectable preparations, KPV peptide reconstituted in bacteriostatic water maintains potency when stored at 28C for up to 28 days, though freeze-thaw cycles cause measurable degradation that compromises research reproducibility

17 , 218234 (2004) Xayarath, B

During ECC, inflammatory stimulation thus leads to an unstable state characterised by a series of phenomena (Figure 7.23)