The Eflone, with cas registry number 3801-06-7, has the systematic name of (6alpha,11beta)-9-fluoro-11,17-dihydroxy-6-methylpregna-1,4-diene-3,20-dione. And its mixture name is Tobrasone. Besides this, it is also called (6a,11b)-9-Fluoro-11,17-dihydroxy-6-methylpregna-1,4-diene-3,20-dione.

Physical properties about this chemical are: (1)ACD/LogP: 2.02; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.02; (4)ACD/LogD (pH 7.4): 2.02; (5)ACD/BCF (pH 5.5): 20.2; (6)ACD/BCF (pH 7.4): 20.2; (7)ACD/KOC (pH 5.5): 299.19; (8)ACD/KOC (pH 7.4): 299.19; (9)#H bond acceptors: 4; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 52.6 Å²; (13)Index of Refraction: 1.574; (14)Molar Refractivity: 98.7 cm³; (15)Molar Volume: 298.9 cm³; (16)Polarizability: 39.12×10^-24cm³; (17)Surface Tension: 50.1 dyne/cm; (18)Enthalpy of Vaporization: 92.22 kJ/mol; (19)Vapour Pressure: 2.59E-13 mmHg at 25°C.

You can still convert the following datas into molecular structure: 
(1)SMILES: O=C(C)[C@]3(O)[C@]2(C[C@H](O)[C@]4(F)[C@@]/1(\C(=C/C(=O)\C=C\1)[C@@H](C)C[C@H]4[C@@H]2CC3)C)C
(2)InChI: InChI=1/C22H29FO4/c1-12-9-17-15-6-8-21(27,13(2)24)20(15,4)11-18(26)22(17,23)19(3)7-5-14(25)10-16(12)19/h5,7,10,12,15,17-18,26-27H,6,8-9,11H2,1-4H3/t12-,15-,17-,18-,19-,20-,21-,22-/m0/s1
(3)InChIKey: FAOZLTXFLGPHNG-KNAQIMQKBX
(4)Std. InChI: InChI=1S/C22H29FO4/c1-12-9-17-15-6-8-21(27,13(2)24)20(15,4)11-18(26)22(17,23)19(3)7-5-14(25)10-16(12)19/h5,7,10,12,15,17-18,26-27H,6,8-9,11H2,1-4H3/t12-,15-,17-,18-,19-,20-,21-,22-/m0/s1
(5)Std. InChIKey: FAOZLTXFLGPHNG-KNAQIMQKSA-N