RESIDUE 01I 30 CONECT CAA 3 CAB CAF HAA CONECT CAB 3 CAA CAC CAK CONECT CAC 3 CAB CAD OAM CONECT CAD 3 CAC CAE HAD CONECT CAE 3 CAD CAF CAG CONECT CAF 3 CAA CAE CAJ CONECT CAG 3 CAE CAH CAN CONECT CAH 3 CAG CAI OAP CONECT CAI 3 CAH CAJ HAI CONECT CAJ 3 CAF CAI HAJ CONECT CAK 3 CAB CAL HAK CONECT CAL 3 CAK OAM CAR CONECT OAM 2 CAC CAL CONECT CAN 3 CAG CAO HAN CONECT CAO 3 CAN OAP CAQ CONECT OAP 2 CAH CAO CONECT CAQ 3 CAO OAT OAU CONECT CAR 3 CAL OAS OAV CONECT OAS 1 CAR CONECT OAT 2 CAQ HOAT CONECT OAU 1 CAQ CONECT OAV 2 CAR HOAV CONECT HAA 1 CAA CONECT HAD 1 CAD CONECT HAI 1 CAI CONECT HAJ 1 CAJ CONECT HAK 1 CAK CONECT HAN 1 CAN CONECT HOAT 1 OAT CONECT HOAV 1 OAV END HET 01I 30 HETNAM 01I naphtho[2,1-b:7,6-b']difuran-2,8-dicarboxylic acid FORMUL 01I C16 H8 O6