It can be well compatible with anionic, non-ionic additives, silicate, CMC, soda ash, sulfate, enzyme preparations, etc. When combined with anionic and non-ionic surfactants, it can produce synergistic effect and improve the whitening effect; When combined with anions, it can produce brightening effect; However, it cannot be mixed with cationic dyes and cationic additives in the same bath. When this product is in excess, the dyed object will turn yellow. This product can be dissolved in 50 times of 100 ℃ water. It is slightly toxic and will not damage the skin. It can be used for whitening cellulose fiber, polyamide fiber, polyvinyl alcohol fiber, wool, silk, etc. Suitable as fluorescent brightener for detergent, soap and paper.