CPC C07C 309/47 (2013.01) [A61K 31/05 (2013.01); A61K 31/15 (2013.01); A61P 39/06 (2018.01); C07C 303/22 (2013.01); C07C 303/44 (2013.01)] | 12 Claims |
1. An 8-(2-hydroxybenzylideneamino)naphthalene-1,3-disulfonic acid compound having the formula I:
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