VersaLyse Lysing solution is a reagent used to lyse red blood cells from any biological fluid and, in particular, to lyse erythrocytes from whole blood. VersaLyse is a highly specific, very gentle lysing solution, suitable for applications such as immunophenotyping, cell sorting, activation or cell culture. It is designed for use in flow cytometry and facilitates obtaining highly discriminative scattergrams whatever the type of flow cytometer used. VersaLyse is a versatile reagent which may be used in lyse/wash, wash/lyse and lyse/no-wash procedures with undiluted or diluted samples. The histograms are dual-parameter light scatter histograms (FS versus SS) of a normal K3EDTA anticoagulated blood sample lysed with VersaLyse Lysing Solution (No-wash procedure).