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Details

Stereochemistry ABSOLUTE
Molecular Formula C20H24O3
Molecular Weight 312.4028
Optical Activity UNSPECIFIED
Defined Stereocenters 5 / 5
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of 2-HYDROXYETHINYLESTRADIOL

SMILES

C[C@]12CC[C@H]3[C@@H](CCC4=C3C=C(O)C(O)=C4)[C@@H]1CC[C@@]2(O)C#C

InChI

InChIKey=KQJCDKMHNQVWDV-BKRJIHRRSA-N
InChI=1S/C20H24O3/c1-3-20(23)9-7-16-14-5-4-12-10-17(21)18(22)11-15(12)13(14)6-8-19(16,20)2/h1,10-11,13-14,16,21-23H,4-9H2,2H3/t13-,14+,16-,19-,20-/m0/s1

HIDE SMILES / InChI

Molecular Formula C20H24O3
Molecular Weight 312.4028
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 5 / 5
E/Z Centers 0
Optical Activity UNSPECIFIED

Approval Year

PubMed

PubMed

TitleDatePubMed
Mechanism-based inactivation of cytochrome P450 3A4 by 17 alpha-ethynylestradiol: evidence for heme destruction and covalent binding to protein.
2002-04
Substance Class Chemical
Created
by admin
on Mon Mar 31 22:19:25 GMT 2025
Edited
by admin
on Mon Mar 31 22:19:25 GMT 2025
Record UNII
L6WVG03IXG
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
2-HYDROXYETHINYLESTRADIOL
Common Name English
19-NORPREGNA-1,3,5(10)-TRIEN-20-YNE-2,3,17-TRIOL, (17.ALPHA.)-
Preferred Name English
2-HYDROXY-17.ALPHA.-ETHYNYL-17.BETA.-ESTRADIOL
Common Name English
2-HYDROXY-17.ALPHA.-ETHYNYLESTRADIOL
Common Name English
Code System Code Type Description
CAS
50394-89-3
Created by admin on Mon Mar 31 22:19:25 GMT 2025 , Edited by admin on Mon Mar 31 22:19:25 GMT 2025
PRIMARY
EPA CompTox
DTXSID80964651
Created by admin on Mon Mar 31 22:19:25 GMT 2025 , Edited by admin on Mon Mar 31 22:19:25 GMT 2025
PRIMARY
FDA UNII
L6WVG03IXG
Created by admin on Mon Mar 31 22:19:25 GMT 2025 , Edited by admin on Mon Mar 31 22:19:25 GMT 2025
PRIMARY
PUBCHEM
40561832
Created by admin on Mon Mar 31 22:19:25 GMT 2025 , Edited by admin on Mon Mar 31 22:19:25 GMT 2025
PRIMARY
Related Record Type Details
PARENT -> METABOLITE