Source comparison
TB-500 Left Out Fridge Ruined: Storage Protocol Comparison
Lyophilised (unreconstituted) at −20°C −20°C 24–36 months 100%. Frozen state prevents all molecular motion Gold standard for long-term storage Reconstituted at 2–8°C 2–8°C 28 days 95–100% if maintained continuously Required for research use Ambient temperature
This comparison does not assign a generated winner or score.
- Lyophilised (unreconstituted) at −20°C
- −20°C
- 24–36 months
- 100%. Frozen state prevents all molecular motion
- Gold standard for long-term storage
- Reconstituted at 2–8°C
- 2–8°C
- 28 days
- 95–100% if maintained continuously
- Required for research use
- Ambient temperature (reconstituted)
- 20–25°C
- 4–6 hours before measurable degradation begins
- <80% after 6 hours, <50% after 24 hours, <10% after 48 hours
- Unacceptable. Irreversible denaturation
- Room temperature excursion <2 hours
- Single brief exposure
- 85–90% retained if immediately refrigerated
- Use immediately or discard within 24 hours
- Refrozen after reconstitution
- −20°C post-thaw
- Not recommended
- Freeze-thaw cycles cause aggregation and precipitation. Activity reduced 40–60%
- Never refreeze reconstituted peptides