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6-Amino-2-naphthalenesulfonic Acid: BD10809493-00-598% HPLC; ￥59.025g

Naphthalene-2-sulfonic acid: BD01197714120-18-398%; ￥96.0100g

2-Naphthalenesulfonicacidhydrate: BD177546036-00-698% (contains <35%H2O); ￥160.0500g

6-(Dimethylamino)naphthalene-2-sulfonic acid: BD0128767134322-51-597%; ￥397.0250mg

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