Fluorescent brightener 199

Optical Brightening Agent ER-Ⅲ, 1,4'-bis(2-cyanostyryl) Benzole, optical brightener 199, C.I.199, 1,4-BIS(4-CYANOSTYRYL)BENZENE, 4,4'-(p-phenylenediethene-2,1-diyl)bisbenzonitrile, Optical Brightening Agent ER C. I. 199, Benzonitrile, 4,4-(1,4-phenylenedi-2,1-ethenediyl)bis-, 1,4'-bis(2-cyanostyryl) Benzene, Optical Brightener ER, 1,4'-bis(2,4'-cyano-phenlene)-benzene, Optical Brightener ER II, Fluorescent Brightener ER-1, C.I. 199, 4,4'-(benzene-1,4-diyldiethene-2,1-diyl)dibenzonitrile, 4,4'-[benzene-1,4-diyldi(E)ethene-2,1-diyl]dibenzonitrile, 2-[2-[4-[2-(2-cyanophenyl)vinyl]phenyl]vinyl]benzonitrile, FBA 199, Fluorescent Brightener ER-I, Fluorescent Brightener, Fluorescent Brightener ER, 1,4-Bis(2-cyanostyryl)benzene, High Efficient Fluorescent whitening Agent CBS, Optical Brightener, Optical Brightening Agent, Fluorescent Whitening Agent, Fluorescent Brightener, Fluorescent Brightening Agent, Optical Whitening Agent, Optical Brightening Agent ER-III, Fluorescent Brightener ER-Ⅰ, ER-Ⅰ, Optical Brightening Agent ER-Ⅰ, Optical Brightner ER-I, Optical Brightner ER-III