Synonyms: 2,2'-Stilbenedisulfonicacid,4,4'-bis[[4-[bis(2-hydroxyethyl)amino]-6-(p-sulfoanilino)-s-triazin-2-yl]amino]-,tetrasodium salt (7CI,8CI);BLB;Belofor OB;Blancofor BBU;Blankophor BBU;Blankophor P/BBU;Blankophor Z-JPN;C.I. 40623;C.I. Fluorescent Brightener220;Fluorescent Brightener 220;Keyfluor White CN;Leucophor U;Photine CPK;SCRI Renaissance 2200;Sandoz CD;Tetrasodium 4,4'-bis[2-di(b-hydroxyethyl)amino-4-(4-sulfophenylamino)-s-triazin-6-ylamino]stilbine-2,2'-disulfonate;