2 3-pyridinedicarboxylic acid July 8, 2019 16 32 64 128 2 3 pyridinedicarboxylic acid solubility 2 3 pyridinedicarboxylic acid cas no 2 4-pyridinedicarboxylic acid 2 6-pyridinedicarboxylic acid 2 3-pyridinedicarboxylic anhydride