Synonyms:
brightener er for dacron ; palanib-riliantweiss r, blankophor er ; fluorescent whitening agent er ; optical brightener 199 ; optical brightener er-i(c i 199) ; 1,4-bis(4-cyanostyryl)benzene ,98% ; c.i.199 ; 1,4-bis(4-cyanostyryl)benzene ; fluorescent brightener 199 ; 1,4-bis(2-cyano styryl)benzene 99+%