2,6-Pyridinedicarboxylic acid (Dipicolinic acid or PDC and DPA) is a chemical compound which composes 5% to 15% of the dry weight of bacterial spores. With the CAS NO.499-83-2, it is also named as 2,6-Dipicolinic acid; Dipicolinate; NSC 176; 2,6-Pyridinedicarboxylic acid. And it is white crystalline powder, insoluble in ethanol. Dipicolinic acid (Pyridine-2,6-dicarboxylic acid, DPA) is known to chelate a wide variety of multivalent metal ions, including Ca(II), Mg(II), Cu(II), Ni(II), Zn(II), Co(II), Tb(III), U(IV), and Mn(II) ions.  Dipicolinic acid  is used as the competition for inhibitors of bovine liver glutamate dehydrogenase.

Physical properties about 2,6-Pyridinedicarboxylic acid are: (1)ACD/LogP: -0.441; (2)ACD/LogD (pH 5.5): -4.09; (3)ACD/LogD (pH 7.4): -4.58; (4)ACD/BCF (pH 5.5):1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)ACD/KOC (pH 5.5): 1.00; (7)ACD/KOC (pH 7.4): 1.00; (8)#H bond acceptors: 5; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 2; (11)Index of Refraction: 1.628 ; (12)Molar Refractivity: 38.204 cm³; (13)Molar Volume: 107.716 cm³; (14)Polarizability: 15.145 10-24cm³; (15)Surface Tension: 83.5650024414063 dyne/cm; (16)Density: 1.551 g/cm³; (17)Flash Point: 234.25 °C; (18)Enthalpy of Vaporization: 76.388 kJ/mol; (19)Boiling Point: 463.72 °C at 760 mmHg

When you are using 2,6-Pyridinedicarboxylic acid, please be cautious about it as the following:
1. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice;
2. Wear suitable protective clothing;
3. Avoid contact with skin and eyes;
4. Wear suitable gloves;

You can still convert the following datas into molecular structure:
(1)InChI=1S/C7H5NO4/c9-6(10)4-2-1-3-5(8-4)7(11)12/h1-3H,(H,9,10)(H,11,12);
(2)InChIKey=WJJMNDUMQPNECX-UHFFFAOYSA-N;
(3)Smilesc1(nc(ccc1)C(O)=O)C(O)=O