Marc's Modified Ringers (MMR) (1×, without EDTA)
5 mm HEPES (free acid)
100 mm NaCl
2 mm KCl
1 mm MgCl2
2 mm CaCl2
Prepare as a 10× stock and adjust pH to 7.4–7.8 with NaOH. Store at room temperature.
5 mm HEPES (free acid)
100 mm NaCl
2 mm KCl
1 mm MgCl2
2 mm CaCl2
Prepare as a 10× stock and adjust pH to 7.4–7.8 with NaOH. Store at room temperature.