Dapi-Fluoromount-G™ is a water-soluble, instant blue nuclear probe fluorescing (455nm) compound for mounting fixed slides using a staining procedure having an aqueous final step. Mounting slides with Dapi-Fluoromount-G™ stains the cell nucleus and may reduce fluorochrome quenching during analysis of slides by fluorescence microscopy. this mounting medium also provides a semi permanent seal for long term storage of slide preparations.