1,6-dioxaspiro[4.4]nonane-2,7-quinone;3505-67-7;Spirodilactone;NSC66526;1,6-Dioxaspiro[4.4]nonane-2,7-dione;NSC10430;271977_ALDRICH;4,4-Dihydroxypimelic acid dilactone;ZINC00388638;1,6-Dioxaspiro(4.4)nonane-2,7-dione;EINECS 222-499-6;NSC124079;42539_FLUKA