148-25-4
变色酸
→
31232-21-0
3-amino-4,5-dihydroxynaphthalene-2,7-disulfonic acid
13432-13-8
5-hydroxy-4-oxo-3-(phenylhydrazinylidene)naphthalene-2,7-disulfonic acid
58425-39-1
5-hydroxy-3,4-dioxonaphthalene-2,7-disulfonic acid