prov:value
| - In addition to being substituted by water-solubilizing groups, the compounds can be substituted in the normal way, by still further atoms or groups of atoms, and in particular in the radicals R1, R2 and R3, for example by halogen atoms or hydroxy, amino, alkyl, aryl, alkoxy, aryloxy, acylamino, cyano, acyl, carbalkoxy, acyloxy or nitro groups, and the like.
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