Synonyms: 1,5a,6,9,9a,9b-Hexahydro-4a(4H)-dibenzofurancarboxaldehyde;2,3,4,5-Bis(2-butenylene)tetrahydrofurfural; 2,3,4,5-Bis(D2-butenylene)tetrahydrofurfural;2,3:4,5-Bis(2-butene-1,4-diyl)tetrahydrofurfural; 2-Furancarboxaldehyde,2,3:4,5-bis(2-butene-1,4-diyl)tetrahydro-;4a-Formyl-1,4,4a,5a,6,9,9a,9b-octahydrodibenzofuran;Bisbutenylenetetrahydrofurfural; Dibutylene tetrafurfural; ENT 17596; MGKRepellent 11; MGK-R 11; MKG 11; NSC 52965; R 11; Repel 111