Benzo[b]thiophene-5,7-disulfonic acid,2,3-dihydro-3-oxo-2-(3-oxo-5,7-disulfobenzo[b]thien-2(3H)-ylidene)-,tetrasodium salt
CAS No: 851108-00-4
benzo,thiophene,disulfonic,dihydro,disulfobenzo,thien,ylidene,tetrasodium
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