.DELTA.1-Dehydrotestolactone .DELTA.1-Dehydrotestololactone .DELTA.1-Testololactone 1,2-Dehydrotestololactone 1,2-Didehydrotestololactone 1-Dehydrotestololactone 13,17-Secoandrosta-1,4-dien-17-oic acid, 13-hydroxy-3-oxo-, .delta.-lactone 13,17-Secoandrosta-1,4-dien-17-oic acid, 13-hydroxy-3-oxo-, lactone 13,17-Secoandrosta-1,4-dien-17-oic acid, 13.alpha.-hydroxy-3-oxo-, .delta.-lactone 13-Hydroxy-3-oxo-13,17-secoandrosta-1,4-dien-17-oic acid .delta.-lactone 17a-Oxa-D-homoandrosta-1,4-diene-3,17-dione 2H-Phenanthro[2,1-b]pyran-2,8(4bH)-dione, 3,4,4a,5,6,10a,10b,11,12,12a-decahydro-10a,12a-dimethyl-, lactone 968-93-4 D-Homo-17a-oxaandrosta-1,4-diene-3,17-dione Delta-1-testololactone Fludestrin NSC 12173 NSC-12173 NSC23759 SQ 9538 TESTOLACTONE Teolit Teslac Teslak Testolacton Testololactone, 1,2-didehydro- Testololactone, 1-dehydro-