Synonyms: Benzenesulfonicacid, 4-hydroxy-5-(2-hydroxy-4-methoxybenzoyl)-2-methoxy-, monosodium salt(8CI,9CI); Benzenesulfonic acid, 4-hydroxy-5-(2-hydroxy-p-anisoyl)-2-methoxy-,sodium salt (7CI); 2,2'-Dihydroxy-4,4'-dimethoxy-5-sulfobenzophenone sodiumsalt; 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone-5-sulfonic acid sodium salt;Sodium 2,2'-dihydroxy-4,4'-dimethoxy-5-sulfobenzophenone; Sodium2,2'-dihydroxy-4,4'-dimethoxy-5-sulfphenone; Sodium2,2'-dihydroxy-4,4'-dimethoxybenzophenone-5-sulfonate