Systematic Name: Cyclopenta[a]cyclopropa[g]phenanthren-7(1H)-one, 1-acetyl-1-(acetyloxy)-2,3,3a,3b,7a,8,8a,8b,8c,9,10,10a-dodecahydro-8b,10a-dimethyl-, (1R,3aS,3bR,7aR,8aS,8bS,8cS,10aS)- 
Empirical Formula: C₂₄H₃₀O₄
Molecular Weight: 382.49
SMILES: CC(=O)[C@]1(CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2C=CC4=CC(=O)[C@@H]5C[C@@H]5[C@]34C)C)OC(=O)C
InChI: InChI=1/C24H30O4/c1-13(25)24(28-14(2)26)10-8-18-16-6-5-15-11-21(27)17-12-20(17)23(15,4)19(16)7-9-22(18,24)3/h5-6,11,16-20H,7-10,12H2,1-4H3/t16-,17+,18-,19-,20-,22-,23-,24-/m0/s1
InChIKey: ARUYPSAYKHCXNE-UQNNAPNABL 
H bond acceptors: 4
H bond donors: 0
Freely Rotating Bonds: 3
Index of Refraction: 1.576
Molar Refractivity: 104.55 cm³
Molar Volume: 315.9 cm³
Surface Tension: 47.6 dyne/cm
Density: 1.21 g/cm³
Flash Point: 224.7 °C
Enthalpy of Vaporization: 79.09 kJ/mol
Boiling Point: 518.4 °C at 760 mmHg
Vapour Pressure: 7.52E-11 mmHg at 25 °C
Melting Point of 17-Hydroxy-1a,2a-methylenepregna-4,6-diene-3,20-dione acetate (CAS NO.2701-50-0):  280-281 °C

  17-Hydroxy-1a,2a-methylenepregna-4,6-diene-3,20-dione acetate (CAS NO.2701-50-0), its Synonyms are 3'H-Cyclopropa[1,2]pregna-1,4,6-triene-3,20-dione,1b,2b-dihydro-17-hydroxy-, acetate (8CI) ; Pregna-4,6-diene-3,20-dione, 17-hydroxy-1a,2a-methylene-, acetate (6CI,7CI) ; Cyclopropa[1,2]cyclopenta[a]phenanthrene,3'H-cyclopropa[1,2]pregna-1,4,6-triene-3,20-dione deriv. ; 3'H-Cyclopropa[1,2]pregna-1,4,6-triene-3,20-dione,17-(acetyloxy)-1,2-dihydro-, (1b,2b)- (9CI) .