Our fluorescent brightener have better price based on good quality. fluorescent brightener(BA, OBA, VBL, CXT)blankophor BA, OBA, DMS; LEUCOPHOR BSLC.I. FB 113#, FB 28#, FB 85#, FB 71#appearance:light yellow powderstrength:100%water content: ≤5%insolubility: ≤0.5%fineness(180µm):≤5% fluorescent brightener(BA, OBA, VBL, CXT)