17956-40-0 2,6-Dipicolinic acid 2,6-Pyridinedicarboxylic acid 4220-17-1 499-83-2 63450-91-9 Dipicolinate Dipicolinic acid EINECS 207-894-3 NSC 176 PYRIDINE-2,6-DICARBOXYLIC ACID pdb file: 153645.pdbsdf file: 153645.sdfdirectory: 153645