135692-96-5 2H-Naphtho[1,8-bc]furan, bimol. deriv. AIDS-000458 AIDS000458 Gossylic lactone Gossypol deriv. Gossypol lactone [8,8'-Bi-2H-naphtho[1,8-bc]furan]-2,2'-dione, 3,3',4,4'-tetrahydroxy-7,7'-dimethyl-5,5'-bis(1-methylethyl)-