Mrv1805 03202317442D 0 0 0 0 0 999 V3000 M V30 BEGIN CTAB M V30 COUNTS 5 4 0 0 0 M V30 BEGIN ATOM M V30 1 C 4.0032 -2.3098 0 0 M V30 2 C 2.6701 -1.5412 0 0 M V30 3 C 1.3331 -2.3098 0 0 M V30 4 O 0 -1.5412 0 0 M V30 5 O 2.6701 0 0 0 M V30 END ATOM M V30 BEGIN BOND M V30 1 1 1 2 M V30 2 1 2 3 M V30 3 1 2 5 M V30 4 1 3 4 M V30 END BOND M V30 END CTAB M END