Synonyms: 2,2'-Stilbenedisulfonicacid, 4,4'-bis(3-phenylureido)-, disodium salt (6CI); Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-[[(phenylamino)carbonyl]amino]-, disodium salt(9CI); C.I. Fluorescent Brightening Agent 30 (7CI); C.I. FluorescentBrightening Agent 30, disodium salt (8CI); 2,2'-Bis(sodiosulfo)-4,4'-bis(phenylureylene)stilbene;4,4'-Bis(3-phenylureido)-2,2'-stilbenedisulfonic acid, disodium salt; AmarWhite RWS; Blancofor R; Blancofor R extra; Blancol C; Blancophor R; BlankophorR; Brightener Agent No. 30; C.I. 40600; C.I. Fluorescent Brightener 30; CitalbaR; Delft White 2RW; Enianil White R; Glowhite RRN; Leucophor R; Lumisol RV;Phorwite RN; Photine R; Pontamine White BR; Tintophen X; Whitex R Extra