SEARCH Articles Figures Tables 1- Amino-2-naphthol-4-sulfonic acid 1- Nitroso-2-naphthol-7-sulfonic acid 2,4 Dinitro 1 naphthol-7 sulfonic acid 2-Naphthol-8-sulfonic acid, sodium salt 2.4- Dinitro-i-naphthol-7-sulfonic acid 5-Naphthol-7-sulfonic acid, 2-amino-6- chromium complexes 6-Nitro-2-naphthol-8-sulfonic acid I-AMINO-2-NAPHTHOL-4-SULFONIC ACID L-Diazo-2-naphthol-4-sulfonic acid L-Naphthol-3-sulfonic acid L-amino-2-naphthol-6-sulfonic acid Naphthols sulfonation