p-phenylenediamine. Cas No: 106-50-3

1-Phenyl-3-Carbethoxy-5-Pyrazolone Carbethoxy Pyrazolone  Cas No: 89-33-8

N-Methyl-2-Cyanoacetamide 2-Cyano-N-Methylacetamide Cas No:  6330-25-1

8-Amino Quinaldine 8-Amino-2-Methylquinoline Cas No:   18978-78-4

3, 4-Dichloro Anline – 6 – Sulphonic Acid  Cas No:  6331-96-0