5-disulfonic acidK酸[化学]naphthalene-1,5-disulfonic acid: naphthalene-1,5-disulfonic acidナフタレン-1,5-ジスルホン酸[化学]disulfonic acid: disulfonic acid二スルホン酸[化学]6-disulfonic acid: 6-disulfonic acidK酸[化学]