InChIInChI=1/2C6H10O7.Ca/c2*7-1-2(8)3(9)4(10)5(11)6(12)13;/h2*2-4,7-10H,1H2,(H,12,13);/q;;+2/p-2/t2*2-,3-,4+;/s3

InChIKey NNLOHLDVJGPUFR-RSHWFSQBNA-L

Smiles[Ca+2].C([O-])(=O)C([C@H]([C@@H]([C@@H](CO)O)O)O)=O.C([O-])(=O)C([C@H]([C@@H]([C@@H](CO)O)O)O)=O |&1:5,6,7,18,19,20,r|