| MA |
| Chemical Name :: Metanilic Acid |
Structure

|
| Cas No. :: 121-97-1 |
| Mol Wt. :: 173.19 |
| Mol. Formula :: C6H7NO3S |
| A2,5DSA |
| Chemical Name :: Aniline 2,5 Di Sulphonic Acid |
Structure

|
| Cas No. :: 98-44-2 |
| Mol Wt. :: 253.2 |
| Mol. Formula :: C6H7NO6S2 |
| Sodium Meta Nitro Benzene Sulphonate |
| Chemical Name :: Resist Salt |
Structure

|
| Cas No. :: 127-68-4 |
| Mol Wt. :: 203.2 |
| Mol. Formula :: C6H5NO5S |
| 2,2 Benzidine Di Sulphonic Acid |
| Chemical Name :: 2,2 BDSA |
Structure

|
| Cas No. :: 117-61-3 |
| Mol Wt. :: 344.3 |
| Mol. Formula :: C12H12N2O6S2 |
| PPD |
| Chemical Name :: Para Phenylenediamine |
Structure

|
| Cas No. :: 106-50-3 |
| Mol Wt. :: 108.14 |
| Mol. Formula :: C6H8N2 |
| PNCBOSA |
| Chemical Name :: Para Nitro Chloro Benzene Ortho Sulphonic Acid |
Structure

|
| Cas No. :: 96-73-1 |
| Mol Wt. :: 237.61 |
| Mol. Formula :: C6H4CLNO5S |