Product Name：4,4'-(1,4-Phenylenebis(ethene-2,1-diyl))dibenzonitrile
Synonyms：Optical Brightening Agent ER-Ⅲ; 1,4'-bis(2-cyanostyryl) Benzole; optical brightener 199; C.I.199; Fluorescent Brightener 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
Molecular Formula：C24H16N2
Molecular Weight：332.39724
