1

2B Acid

2

4B Acid

3

Bromamine Acid

4

C-Acid ( 5-Amino-2-Chlorotoluene-4-Sulfone Acid )   

5

Cresamine

6

HMQCA (3-Hydroxy-2-Methyl Quinoline-4-Carboxylic Acid)

7

m-Ureido Aniline

8

N-Ethyl OPTSA

9

OCPNA (o-Chloro-p-Nitro Aniline)    

10

Orthanilic Acid

11

PTS-EC (2-Ethoxy Ethyl-Toluene Sulfonate)

12

PTS-MC (2-Methoxy Ethyl-p-Toluene Sulfonate)