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PL390884A2010-03-312010-03-314-Hydroxypyrrolic ionic liquids with anion containing a sulfonate group and process for the preparation thereof
PL218803B1
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Coloured ammonium ionic liquids with 4-[(3-carboxyl-2-hydroxynaphthalene-1-yl)diazenylo]-3-hydroxynaphthalene-1-sulphonic anion and process for the preparation thereof
Colored pyridinium ionic liquids with 4-[(3-carboxyl-2-hydroxynaphthalene-1-yl)diazenylo]-3-hydroxynaphthalene-1-sulphonic anion and process for the preparation thereof