for the following products
3-(N-Ethyl-3-methylanilino)-2-hydroxypropanesulfonic acid sodium salt | N-Ethyl-N-sulfohydroxypropyl-m-toluidine sodium salt | Sodium 3-(N-ethyl-3-methylanilino)-2-hydroxypropanesulfonate | Sodium N-ethyl-N-(2-hydroxy-3-sulfopropyl)-m-toluidine | TOOS and N-Ethyl-N-(2-hydroxy-3-sulfopropyl)-3-methylaniline sodium salt (TOOS)