C.Fix is general purpose Cytology Fixative with characteristics similar to Cytorich Red. A methanol based fixative, it is great fixative for a wide range of cytology samples including brushings, washings, pleural fluids and FNAs. It does lyse RBCs efficiently and keeps the resulting proteins from coagulating. Since it has minimal amounts of Formalin,  IHC and Genetic testing characteristics are not exactly like an alcohol based fixative.