2',4',5',7'-四氯-3',6'-二羟基螺[2-苯并呋喃-3,9'-氧杂蒽]-1-酮; D and C Red No.26; Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 2',4',5',7'-tetrachloro-3',6'-dihydroxy-; 2',4',5',7'-tetrachloro-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one; C.I.Solvent Red 42; C.I.45366; Solvent Red 42