Zwitterionic buffer substance

MES is used as a zwitterionic buffer substance in the preparation of media for the culture of microorganisms and plant cells. MES is a very convenient buffer substance due to its biological inertness.

Assay (perchloric acid titration, calculated on dried substance)≥ 99.0 %Identity (IR-spectrum)passes testChloride (Cl)≤ 0.002 %Sulfate (SO₄)≤ 0.002 %Heavy metals (as Pb)≤ 0.001 %Loss on drying (105 °C; 3 h)≤ 0.5 %Suitability as enzyme substrate (tested with LDH)passes test