OXALIC ACID non-polymer HETAIN C2 H2 O4 0 2003-06-20 2011-06-04 N REL 90.035 OXD N N 1O4N RCSB C1 C 0 1 N N N 15.157 28.504 17.941 -0.139 0.000 0.734 C1 OXD 1 C2 C 0 1 N N N 16.600 28.312 17.493 0.139 0.000 -0.734 C2 OXD 2 O3 O 0 1 N N N 15.039 28.119 19.174 -1.283 0.000 1.134 O3 OXD 3 O4 O 0 1 N N N 17.495 28.244 18.388 1.283 0.000 -1.134 O4 OXD 4 O5 O 0 1 N N N 14.310 28.737 17.043 0.880 0.000 1.611 O5 OXD 5 O6 O 0 1 N N N 16.869 28.034 16.379 -0.880 0.000 -1.611 O6 OXD 6 H5 H 0 1 N N N 13.410 28.856 17.322 0.700 0.000 2.562 H5 OXD 7 H6 H 0 1 N N N 17.769 27.914 16.099 -0.700 0.000 -2.562 H6 OXD 8 sing N N 1 doub N N 2 sing N N 3 doub N N 4 sing N N 5 sing N N 6 sing N N 7 O=C(O)C(=O)O OC(=O)C(O)=O OC(=O)C(O)=O C(=O)(C(=O)O)O C(=O)(C(=O)O)O InChI=1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6) MUBZPKHOEPUJKR-UHFFFAOYSA-N ethanedioic acid ethanedioic acid RCSB RCSB