23940-36-5 Bis(4,5-dihydroxy-1,3-benzoldisulfonato(4)-O4,O6)-antimonat(III), pentannatriumsalz EINECS 245-943-0 Pentasodium 2-(2-oxido-3,5-disulphonatophenoxy)-1,3,2-benzodioxastibole-4,6-disulphonate Stibophen anhydrous