(3-Aminophenyl)-urea Monohydrochloride
1,3-Butanediol
1,3-Cyclohexanedione
1,3-Phenylenediamine-4-sulfonic Acid
1,4-Diamino-2-nitrobenzene
1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone
1-Naphthol-3,6-disulfonic Acid
2,2'-Dithiosalicylic Acid
2,5-Diaminobenzene-1,4-disulphonic Acid
2,5-Diaminobenzenesulfonic Acid
2-(2,4-Dichlorophenoxy)aniline
2-(2-Methylphenoxy)aniline