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SZ CAT No SZ-N012000
CAS No 68-22-4
Mol.F. C20H26O2
Mol.Wt. 298.4
Inv. Status Custom Synthesis

Chemical Name: 17-Hydroxy-19-nor-17α-pregn-4-en-20-yn-3-one (as per EP & USP)

Synonym: Levonorgestrel EP Impurity U

Smiles: O=C1CC[C@]2([H])[C@@]3([H])CC[C@]4(C)[C@](O)(C#C)CC[C@@]4([H])[C@]3([H])CCC2=C1

Inchi: InChI=1S/C16H18O3/c1-4-19-16(17)11(2)12-5-6-14-10-15(18-3)8-7-13(14)9-12/h5-11H,4H2,1-3H3/t11-/m0/s1

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