1,6-DIHYDROXY NAPHTHALENE1,6-Naphthalenediol1,6-萘二酚1,6-Dihydroxynaphthalene1,6-二羟基萘1,6-Dihydroxynaphthalenenaphthalene-1,6-diol1,6-DIHYDROXY NAPHTHALENE2,5-dihydroxynaphthalene2,5-naphthalenediol1,6-dihydroxynaphthalene6-hydroxy-1-naphthol1,6-naphthalenediol