Understand the source comparison
SS-LUP-332 Degradation Reconstituted: Comparison
Lyophilised at −20°C <1% per year Minimal oxidation, negligible hydrolysis 12–24 months Not applicable. Peptide intact Lyophilised at 4°C ~5% per month Accelerated oxidation, residual moisture hydrolysis 4–6 months None. Degraded bonds cannot be restored Lyoph
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Lyophilised at −20°C
- <1% per year
- Minimal oxidation, negligible hydrolysis
- 12–24 months
- Not applicable. Peptide intact
- Lyophilised at 4°C
- ~5% per month
- Accelerated oxidation, residual moisture hydrolysis
- 4–6 months
- None. Degraded bonds cannot be restored
- Lyophilised at 25°C
- ~15% per week
- Rapid oxidation, aggregation, hydrolysis
- 2–3 weeks
- None. Aggregates do not redissolve
- Reconstituted at 2–8°C
- ~5% per 14 days
- Slow hydrolysis in aqueous solution
- 14–21 days
- Not applicable. Degradation ongoing
- Reconstituted at 22°C
- ~50% per 48 hours
- Rapid hydrolysis, oxidation
- 2–3 days maximum
- None. Fragmented peptides remain fragmented
- Freeze-thaw cycles (reconstituted)
- 15–25% per cycle
- Ice crystal aggregation, mechanical stress
- Single use after thaw
- Aggregates cannot be redissolved
- The bottom line: preventing SS-LUP-332 degradation before reconstitution requires −20°C storage for lyophilised powder and 2–8°C storage for reconstituted solution. Temperature excursions above these ranges cause irreversible damage that reconstitution cannot repair. Peptides stored improperly before reconstitution fail not because of technique errors, but because the molecular structure was already compromised.