Norethynodrel

CAS Registry Number®

68-23-5

CAS Name

Norethynodrel

Molecular Formula

C20H26O2

Molecular Mass

298.42

Cite this Page

Norethynodrel.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=68-23-5 (retrieved 2025-05-13) (CAS RN: 68-23-5).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    169-170 °C

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/C20H26O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h1,16-18,22H,4-12H2,2H3/t16-,17-,18+,19+,20+/m1/s1

InChIKey

InChIKey=ICTXHFFSOAJUMG-SLHNCBLASA-N

SMILES

C[C@@]12[C@]([C@]3([C@](CC1)(C4=C(CC3)CC(=O)CC4)[H])[H])(CC[C@]2(C#C)O)[H]

Canonical SMILES

O=C1CC2=C(CC1)C3CCC4(C)C(CCC4(O)C#C)C3CC2

Other Names for this Substance

  • 19-Norpregn-5(10)-en-20-yn-3-one, 17-hydroxy-, (17α)-
  • 19-Nor-17α-pregn-5(10)-en-20-yn-3-one, 17-hydroxy-
  • (17α)-17-Hydroxy-19-norpregn-5(10)-en-20-yn-3-one
  • 17α-Ethinyl-17β-hydroxy-Δ5(10)-estren-3-one
  • 17α-Ethynylestr-5(10)-ene-17β-ol-3-one

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