[Studies on hydroxyfluoran and its derivatives as organic reagents. XII. Determination of I- and NO2- with 3,4,5,6-tetrachloro-3',4',5',6'-tetrahydroxyfluoran methyl ester].
D055598:Chemical Phenomena; D002621:Chemistry; D002713:Chlorine; D004952:Esters; D007202:Indicators and Reagents; D007455:Iodine / Q000032:analysis*; D007477:Ions; D009573:Nitrites / Q000032:analysis*; D013053:Spectrophotometry; D014966:Xanthenes
D004952:Esters; D007202:Indicators and Reagents; D007477:Ions; D009573:Nitrites; D014966:Xanthenes; D002713:Chlorine; D007455:Iodine