5,6-diaminonaphthalene-1-sulphonic acid;5,6-diaminonaphthalene-1-sulfonic acid;1,2DIAMINONAPTHALANE-5-SULPHONICACID;5,6-Diamino-1-naphthalenesulfonic acid;5,6-bis(azanyl)naphthalene-1-sulfonic acid
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