7-Oxabicyclo[2.2.1]hept-5-ene-2,3-dione, ID: C55058689 NIST 24031905052D 1 1.00000 0.00000 Copyright by the U.S. Sec. Commerce on behalf of U.S.A. All rights reserved. 9 10 0 0 0 1 V2000 0.8525 1.9687 0.0000 C 0 0 0 0 0 0 0 0 0 1.7049 1.4765 0.0000 C 0 0 0 0 0 0 0 0 0 1.7049 0.4922 0.0000 C 0 0 0 0 0 0 0 0 0 0.8525 0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0.0000 0.4922 0.0000 C 0 0 0 0 0 0 0 0 0 0.0000 1.4765 0.0000 C 0 0 0 0 0 0 0 0 0 0.4521 0.9839 0.0000 O 0 0 0 0 0 0 0 0 0 2.5574 1.9687 0.0000 O 0 0 0 0 0 0 0 0 0 2.5574 0.0000 0.0000 O 0 0 0 0 0 0 0 0 0 1 2 1 0 0 0 2 3 1 0 0 0 3 4 1 0 0 0 4 5 1 0 0 0 5 6 2 0 0 0 6 1 1 0 0 0 1 7 1 0 0 0 7 4 1 0 0 0 2 8 2 0 0 0 3 9 2 0 0 0 M END