Ethinylestradiol

CAS Registry Number®

57-63-6

CAS Name

Ethinylestradiol

Molecular Formula

C20H24O2

Molecular Mass

296.40

Cite this Page

Ethinylestradiol.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=57-63-6 (retrieved 2024-12-03) (CAS RN: 57-63-6).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    141-146 °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/C20H24O2/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/h1,5,7,12,16-18,21-22H,4,6,8-11H2,2H3/t16-,17-,18+,19+,20+/m1/s1

InChIKey

InChIKey=BFPYWIDHMRZLRN-SLHNCBLASA-N

SMILES

C[C@@]12[C@]([C@]3([C@](CC1)(C=4C(CC3)=CC(O)=CC4)[H])[H])(CC[C@]2(C#C)O)[H]

Canonical SMILES

C#CC1(O)CCC2C3CCC4=CC(O)=CC=C4C3CCC21C

Other Names for this Substance

  • 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, (17α)-
  • 19-Nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17-diol
  • (17α)-19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol
  • Amenoron
  • Chee-O-Genf

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Deleted or Replaced CAS Registry Numbers

77538-56-8, 406932-93-2, 1050678-65-3

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