Synonyms: Benzenesulfonicacid, 2-[(2,7-dihydro-3-methyl-2,7-dioxo-3H-naphtho[1,2,3-de]quinolin-6-yl)amino]-5-methyl-,monosodium salt (9CI);m-Toluenesulfonic acid,6-[(2,7-dihydro-3-methyl-2,7-dioxo-3H-naphtho[1,2,3-de]quinolin-6-yl)amino]-,monosodium salt (8CI);Acid Red 80;Acid Red A;Ahcoquinone Rubine R;Alizarine Direct Red 2B;Alizarine Light Red R;Alizarine Rubine R;Alizarine Rubinol R;AlizarineRubinol R-CF;Anthraquinone Rubine R;C.I. 68215;C.I. Acid Red 80;Erio AnthraceneRubine R;Erio Fast Rubine R;Erionyl Rubine E 2BFL;Erionyl Rubine ER;FenalanRuby R;Nylomine Acid Red B 5B;Solway Rubinol R;Solway Rubinole RA;SuperianRubinol R;Supracen Red 3B;