H-acid
K acid
J acid
2-hydroxy-3-naphthoic acid
2-Naphthol
2-Amino-6-chloro-4-nitrophenol
6-nitro-1-diazo-2-naphthol-4-sulphonic acid
Sulfanilic acid
4-Amino-3-hydroxy-1-naphthalenesulfonic acid
3,5-Diaminobenzoic acid
3-Methylsalicylic acid
Synthetic-anthraquinone
4-(Ethylsulfurate sulfonyl)aniline
Cyanuric chloride
Sodium Carbonate
2,7-Naphthalenedisulfonicacid, disodium salt
3-Diethylaminophenol
Nitrobenzene
2,4-Diaminotoluene
4-Aminoacetanilide