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

4,4-Dimethoxy-2-Butanone Cas No:  5436-21-5

3-(Trifluoromethyl)Acetophenone
M-Trifluoromethyl Acetophenone  Cas No: 349-76-8

4-Methylphthalic Anhydride  Cas No:19438-61-0

4-Methylphthalic Anhydride Cas No: 19438-61-0

4-Methylphthalic Acid   Cas No: 4316-23-8