8 7 0 0000 0 0 0 0 0999 V2000 -2.0398 0.4049 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 2.4897 0.4049 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 -3.5398 -0.4049 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 3.5398 -0.4049 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 -2.0398 -0.4049 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 2.4897 -0.4049 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 -0.6301 0.2850 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0.7197 -0.4049 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 1 5 2 0 2 6 2 0 3 5 1 0 4 6 1 0 5 7 1 0 6 8 1 0 7 8 1 0 M END > InChI=1S/C4H6O4/c5-3(6)1-2-4(7)8/h1-2H2,(H,5,6)(H,7,8)/i3+2,4+2 > KDYFGRWQOYBRFD-NUQCWPJISA-N > 1/1/N:7,8,5,6,1,3,2,4/E:(1,2)(3,4)(5,6,7,8)/gE:(1,2)/I:/E:m/gE:m/rA:8nOOOOC.i14C.i14CC/rB:;;;d1s3;d2s4;s5;s6s7;/rC:-2.0398,.4049,0;2.4897,.4049,0;-3.5398,-.4049,0;3.5398,-.4049,0;-2.0398,-.4049,0;2.4897,-.4049,0;-.6301,.285,0;.7197,-.4049,0; > C4 H6 O4 > 122.0731 > O=[14C](CC[14C](O)=O)O > 21171060 $$$$