1,2-Benzenedicarboxylic acid, monopotassium salt 877-24-7 88-99-3 AI3-51765 EINECS 212-889-4 Hydrogen potassium phthalate PHTHALIC ACID, POTASSIUM SALT Phthalic acid, monopotassium salt Potassium acid phthalate Potassium biphthalate Potassium hydrogen phthalate