Chemical Name: 13β-ethyl-3-oxo-18,19-dinor-17α-pregn-4-en-20-yn-17-yl acetate (as per EP)
Synonym: "Levonorgestrel acetate ; Norgestimate USP Related Compound A
Smiles: CC[C@@]12[C@@](C#C)(OC(C)=O)CC[C@@]1([H])[C@@](CCC3=CC4=O)([H])[C@]([C@@]3([H])CC4)([H])CC2
Inchi: InChI=1S/C23H31NO3/c1-4-22-12-10-19-18-9-7-17(24-26)14-16(18)6-8-20(19)21(22)11-13-23(22,5-2)27-15(3)25/h2,14,18-21,26H,4,6-13H2,1,3H3/b24-17+/t18-,19+,20+,21-,22-,23-/m0/s1