Intermediate
- Chromium formate
- 4'-aminoazobenzene-4-sulfo-acid
- 2,4-Diaminobenzenesulfonic acid
- Sodium 2,4-diaminobenzenesulfonate (m-bis)
- 2 minus 2 - trimethyl - 3, 5-2 amino benzene sulfonic acid (M)
- 3-Aminobenzene sulfonic acid
- 2,3- -6- two hydroxy naphthalene sulfonate (R dihydroxy salt)
- 2,8-Dihydroxynaphthalene-6-sulfonate
- intermediate Naphthalene series 1- naphthol
- Nitrosyl sulfuric acid