Fluorescein Water Soluble C.I. 45350 - 10gm - 100gm *Free PP* - Product Code: RRBD87 - Pack Size: 10gm - 100gm Description Fluorescein sodium salt is a disodium salt of fluorescein and a noted pH sensitive fluorophore. Fluorescein sodium salt has been utilized in studies as a drug model, as a penetrating dye and also as a fluorescein tracer. Fluorescein sodium salt has also been used in vitro to quantify root dentin demineralization. Additional reported uses include microscopy, as a gain medium in dye laser use and to detect latent blood stains in vitro.