Synonyms: [2,2'-Bibenzo[b]thiophene]-3,3'-diol,6,6'-diethoxy-, bis(hydrogen sulfate), disodium salt (8CI,9CI); Ahcovat SolubleOrange HR; Algosol Orange HR-CF; Anthrasol Orange HR; Arlindone Orange HR; C.I.73336; C.I. Solubilised Vat Orange 5, disodium salt; Chemisol Orange RF;Cibantine Brilliant Pink F3B; Cibantine Orange HR; Cibantine Orange R;Fenanthra Orange HR; Indigo Soluble Brilliant Orange K; Indigosol Orange HR;Kambosol Orange HR; Mikethrene Soluble Orange HR; Sandozol Orange R; SolasolOrange RH; Soledon Orange HR; Soledon Orange R; Solindolo Orange R; Soluble VatOrange R; Solvat Orange R; Tinosol Orange R