Synonyms:
fluorescent brightener er ; fluorescent brightener er-i ; 4'-(2-cyanostyryl)-2-stilbenecarbonitrile ; 4,4-bis[(2-cyano-phenyl)ethenyl]benene ; fba 199 ; fluorescent bleaches er ; cyanostyryl benzene ; b-er ; 1,4-bis(2-cyano styryl)benzene ; 2,2'-(p-phenylendiethen-2,1-diyl)bisbenzonitril