Fluorescent brightener KB Fluorescent Brightener Pf Fluorescent brightener BA Fluorescent brightener KOB Fluorescent brightener PS-1 sodium 4-[3-(4-chlorophenyl)-4,5-dihydro-5-phenyl-1H-pyrazol-1-yl]benzenesulphonate Fluorescent Brightener 353 MDAC) disodium 4,4'-bis[[6-anilino-4-[(2-hydroxyethyl)methylamino]-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulphonate Fluorescent brightener 185 Fluorescent Whitening Agent EBF Fluorescent brightener JPS-1-5 Fluorescent brightener PF-127 Fluorescent brightener PF-3 Fluorescent whitening agent AC Fluorescent brightener CL-L Fluorescent brightener OB-1T Optical brighteners SFG