various naphthalene serial intermediates and organic chemicals 1,2,4-ACID1,2-DIAZOXY ... 5-NAPHTHALENE DISULFONIC ACID 1,5-NAPHTHALENE DISULFONIC ACID SODIUM SALT(1,5-NDS)1,6-CLEVES ACID1, ... ACID1-NAPHTHYLAMINE2,3- ACID2,6-NAPHTHALENE DISULFONIC ACID SODIUM SALT(2,6-NDS)2,7-DIHYDROXY NAPHTHALENE2,7 ... -NAPHTHALENE DISULFONIC ACID SODIUM SALT(2,7-NDS)2-NAPHTHOL4-CHLORO-1, ...