... ; 25g/L at 25'C. Purity 98.2% min. Optical Brightening Agent for detergent, CBS-X (OBA 351) CAS NO ... eachProperties:Fluorescence Brightener CBS-X is bis-cinnamene monobiphenyl type optical fluorescence brightener, it is the best fluorescence brightener for detergent ... in water , have good whitening effect to the fibre, polyamide, albumen fibre under the room temperature. The whitening effect of its ...