Mrv1805 08132519172D 0 0 0 0 0 999 V3000 M V30 BEGIN CTAB M V30 COUNTS 2 0 0 0 0 M V30 BEGIN ATOM M V30 1 Be 1.7483 -0.4167 0 0 CHG=1 M V30 2 O 1.5833 1.2083 0 0 CHG=-1 M V30 END ATOM M V30 END CTAB M END