28606-01-1

tri-potassium indigotrisulfonate Indigotrisulfonate tripotassium salt indigotrisulfonic acid tripotassium salt INDIGO TRISULFONATE POTASSIUM SALT REDOX INDICATOR tripotassium 3,3'-dioxo-[DELTA2,2'-biindoline]trisulphonate 3,3'-Dioxo-Δ2,2'-biindolinetrisulfonic acid tripotassium salt tri-Potassium indigotrisulfonate, Tripotassium indigotrisulfonate (2E)-3-oxo-2-(3-oxo-5-sulfonato-1H-indol-2-ylidene)-1H-indole-5,7-disulfonate