| Name | CAS No. | Details |
| 2-Chloro-5-methyl-1,4-phenylenediamine | 5307-03-9 | Details |
| 2-hydroxybenzene-1,4-dicarboxylic acid | 636-94-2 | Details |
| 2-Nitro-1,4-Phenylenediamine | 5307-14-2 | Details |
| 4,4'-sulphonylbis[2-aminophenol] | 7545-50-8 | Details |
| 3,3'-methylenedianiline | 19471-12-6 | Details |
| 3,3-Dichlorobenzidine | 91-94-1 | Details |
| 3,4-Diaminodiphenylmethane | 19430-83-2 | Details |
| 3,4'-oxydianiline | 2657-87-6 | Details |
| 3-amino-2, 6-dimethoxypyridine | 28020-37-3 | Details |
| 3-hydroxy-2, 6-dimethoxypyridine | 885963-28-0 | Details |
| 4-(5' -amino-6 '-hydroxybenzoxazol-2' yl) benzoic acid | Details | |
| Methyl 4-(5'-amino-6'-hydroxylbenzoxazol-2'-yl)benzoate | 883566-56-1 | Details |