1,10-Phenanthroline
1,2-Benzenedicarboxylicacid, Potassium Salt (1:?)
1-(2-Pyridylazo)-2-naphthol
1-Methyl-2-pyrrolidinone
2',7'-Dichlorofluorescein
2,8-Phenazinediamine,N8,N8,3-trimethyl-, Hydriodide (1:1)
2-Amino-4-picoline
3-Indolepropionic Acid
4-(2-Pyridylazo)resorcinol
5-(4-Dimethylaminobenzylidene)rhodanine
Acid Blue 74
Alizarin Red S