SEARCH Articles Figures Tables 1- Hydroxy-8- naphthalene 1- naphthalene sulfonic acid, 3-Hydroxy- 4- -7-nitro 1-Hydroxy-2- naphthalene-5-sulfonic 1-naphthalene sulfonic acid, 7-Hydroxy-, sodium 2-Hydroxy-1- naphthalene-4-sulfonic acid 2-naphthalene sulfonic acid, 8-Hydroxy-5,7 dinitro 6-amino-4-hydroxy-2-naphthalene-sulfonic 6-amino-4-hydroxy-2-naphthalene-sulfonic acid L-Hydroxy-2- naphthalene-4-sulfonic acid Naphthalene sulfonates Naphthalenes sulfonation Sulfonated naphthalene Sulfones, hydroxy