6357-94-4O=S(=O)(O)c1cc(O)c2ccc(O)cc2c1DMYHTSZRAULBDW-UHFFFAOYSA-N6357-94-4DTXSID10212955化学的特性4,7-Dihydroxynaphthalene-2-sulfonic acid [6357-94-4]. (2,5-dihydroxynaphthalene-7- sulfonic acid), dioxy J acid, C10H8O5S, Mr 240.2, is readily soluble in water; its sodium salt is much less soluble and is easily salted out. Amination with NH3– NaHSO3 yields J acid.
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