Nanocomposite,recordingmaterials,sol-gelmatrix,decodersystem,colorfilter,inks,paints,markers,highlighters,corrosioninhibitors,explosives,packagingChemicalbooksystem,textiles,hairdyes,make-up,cosmetics,foodstorage,dentalbleaching,detectingturmorcells,determinebacterialgrowth,cancerchemopreventiveactivity. Used as a biological stain, etc. For the determination of free chlorine, biological stains, such as the staining of connective tissue and bacterial flagella. pH indicator.