Optical Brightening Agent for detergent,CBS-X ,E11 1145-1180.solubility; 25g/L at 25 ... 98.2% min. Optical Brightening Agent for detergent, CBS-X (OBA 351) CAS NO: 27344-41-8Appearance: light yellow ... Packaged in cardboard drums, 25kg eachProperties:Fluorescence Brightener CBS-X is bis-cinnamene monobiphenyl type optical fluorescence brightener, it ... /Optical Brightening Agent for detergent/OBA CBS-X 351