CAS:135-53-5 MF:C10H7NaO5S MW:262.21 EINECS:205-198-4 Cyfystyron:2-Naphthalenesulfonicacid, 6,7-dihydroxy-, monosodiwmhalen;6,7-dihydroxy-2-naphthalenesulfonicacimonosodiumsalt;HALEN SODIWM ASID 6,7-DIHYDROXY-2-NAPHTHALENESULFONIC;HALEN MONOSODIWM ASID 2,3-DIHYDROXYNAPHTHALENE-6-SULFONIC;2,3-DIHYDROXYNAPHTHALENE-6-SULFONIC ASID SODIWM HALEN;DIHYDROXY-R-SALT;DIOXY R HALEN;DS ASID, HALEN MONOSODIWM;Sodiwm 2,3-dihydroxynaphthalene-6-sulfonate;SODIWM 6,7-DIHYDROXY-2-NAPHTHALENE SULFONATE;SODIWM 6,7-DIHYDROXYNAPHTHALENE-2-SULFONATE;sodiwm 6,7-dihydroxynaphthalene-2-sulphonate