RESIDUE 0TR 15 CONECT CA1 3 OA1 CA2 CA6 CONECT OA1 1 CA1 CONECT CA2 3 CA1 OA2 CA3 CONECT OA2 2 CA2 HA2 CONECT CA3 3 CA2 CB3 HA3 CONECT CB3 3 CA3 CAE HB3 CONECT CA5 3 CA6 CAE HA5 CONECT CA6 3 CA1 CA5 HA6 CONECT CAE 3 CB3 CA5 HAE CONECT HA6 1 CA6 CONECT HA2 1 OA2 CONECT HAE 1 CAE CONECT HA5 1 CA5 CONECT HA3 1 CA3 CONECT HB3 1 CB3 END HET 0TR 15 HETSYN 0TR TROPOLONE HETNAM 0TR 2-HYDROXYCYCLOHEPTA-2,4,6-TRIEN-1-ONE FORMUL 0TR C7 H6 O2