Disodium 6-chloro-6'-methoxy-4-methyl[2,2'-bibenzo[b]thiophene]-3,3'-diyl disulfate

[2,2'-Bibenzo[b]thiophene]-3,3'-diol,6-chloro-6'-methoxy-4-methyl-, bis(hydrogen sulfate), disodium salt (8CI,9CI) ; Anthrasol Scarlet IB ; Arlindone Scarlet IB ; C.I. 73356 ; C.I. Solubilised VatRed 6, disodium salt ; Cibantine Scarlet F3B ; Indigosol Scarlet IB ; SandozolScarlet 2B ; Solasol Scarlet BS ; Tinosol Scarlet 3BL ; [2,2'-Bibenzo[b]thiophene]-3,3'-diol,6-chloro-6'-methoxy-4-methyl-, 3,3'-bis(hydrogen sulfate), sodium salt (1:2)