Paraformaldehyde (4%) in PBS plus Mg and EGTA

COMPOSITION: 4% paraformaldehyde, 10 mM sodium phosphate dibasic, 2 mM potassium phosphate monobasic, 2.7 mM KCl, 137 mM NaCl, 2 mM MgCl2, and 1.5 mM EGTA.

PH: pH 7.4 ┬▒ 0.15.

STORAGE: Store at 2-8 degrees Celsius or -20 degrees Celsius for long term usage.

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