Fluorescent Brightener 28 (Technical Grade)

C.I. Fluorescent Brightening Agent 28; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid; 4,4'-Bis[(4-anilino-6-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid; 4,4'-Bis[2-anilino-4-[bis(hydroxyethyl)amino]-s-triazin-6-ylamino]-2,2'-stilbenedisulfonic acid; 4,4'-Bis[[4-anilino-6-bis[(2-hydroxyethyl)amino]-s-triazin-2-yl]amino]-2,2'-stilbenedisulfonic acid; Phorwite BBH