Sodium 3-(2-hydroxyphenyl)-8-sulfonatobenzo-[f]quinoline-1-carboxylate

disodium 3-(2-hydroxyphenyl)-8-sulphonatobenzo[f]quinoline-1-carboxylate

3-(2-Hydroxyphenyl)-8-sulfobenzo[f]quinoline-1-carboxylic acid sodium salt

3-(2-Hydroxyphenyl)-8-sulfobenzo[f]quinoline-1-carboxylic acid disodium salt