Source comparison
MK-677 Storage: Temperature vs Stability Comparison
−20°C (freezer) 12–24 months in sealed vial Not recommended. Causes ice crystal formation and concentration gradients upon thawing Minimal. Oxidation and hydrolysis effectively halted Gold standard for long-term lyophilised MK-677 storage; do not freeze recons
This comparison does not assign a generated winner or score.
- −20°C (freezer)
- 12–24 months in sealed vial
- Not recommended. Causes ice crystal formation and concentration gradients upon thawing
- Minimal. Oxidation and hydrolysis effectively halted
- Gold standard for long-term lyophilised MK-677 storage; do not freeze reconstituted solutions
- 2–8°C (refrigerator)
- 3–6 months if sealed; 30–60 days if opened
- 28 days maximum with bacteriostatic water
- Slow hydrolysis and potential bacterial growth after 28 days
- Required for all reconstituted MK-677 storage; adequate for short-term lyophilised storage
- 20–25°C (room temperature)
- 2–4 weeks acceptable for sealed lyophilised powder
- 7–10 days before measurable potency loss
- Accelerated hydrolysis; bacterial growth risk after 72 hours
- Acceptable for shipping lyophilised MK-677; unacceptable for reconstituted storage
- 37°C (body temperature or warm environment)
- Rapid degradation. Avoid entirely
- 48–72 hours maximum before significant potency loss
- Hydrolysis rate doubles every 10°C increase; protein denaturation begins
- Never expose MK-677 to sustained temperatures above 30°C
- The difference between 2–8°C refrigerated storage and 20–25°C room temperature storage is the difference between a 28-day usable window and a 7-day window for reconstituted MK-677. For lyophilised powder, the temperature sensitivity is lower but still meaningful. A sealed vial can tolerate brief ambient temperature exposure during shipping, but long-term room temperature storage accelerates oxidation and moisture absorption enough to cut the stability window from 12–24 months down to 2–4 weeks.