Indicators

1,1'-Diethyl-2,4'-cyanine iodide is a cyanine dye and pH indicator with a range of 4.5 (red) to 6.5(yellow). 1,1'-Diethyl-2,4'-cyanine iodide absorbs at λ|max|= 558 nm.

1-(2-Pyridylazo)-2-naphthol.

1-(2-Pyridylazo)-2-naphthol.

1-(2-Pyridylazo)-2-naphthol.

1-(2-Pyridylazo)-2-naphthol.

1-(2-Pyridylazo)-2-naphthol (PAN).

2′,7′-Dichlorofluorescein.

for Fluorescent indicator.

for Fluorescent indicator.

for Fluorescent indicator.

3',3'',5',5''-Tetraiodophenolphthalein.

3',3'',5',5''-Tetraiodophenolphthalein.