Monopotassium 5-sulfoisophthalate

5-Sulfoisophthalic acid 5-potassium salt

5-Sulfo-1,3-benzenedicarboxylic acid, monopotassium salt

1,3-Benzenedicarboxylic acid, 5-sulfo-, monopotassium salt

1,3-Benzenedicarboxylic acid, 5-sulfo-, potassium salt (1:1)