13-Ethyl-3-methoxygona-2,5(10)-dien-17-one2322-77-2100 % similar 13-Ethylgon-4-ene-3,17-dione21800-83-944 % similar (±)-13β-Ethylgon-4-ene-3,17-dione23477-67-044 % similar Estr-5(10)-ene-3,17-dione3962-66-141 % similar 1,4,5,8-Tetrahydro-2,7-dimethoxynaphthalene1614-82-033 % similar