Fenestrel

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National Institutes of Health Divider Arrow

NCATS

Details

Stereochemistry	MIXED
Molecular Formula	C16H20O2
Molecular Weight	244.3288
Optical Activity	UNSPECIFIED
Defined Stereocenters	0 / 3
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure of Fenestrel

Structure Search

SMILES

CCC1C(C)C(CC=C1C2=CC=CC=C2)C(O)=O

InChI

InChIKey=CLMFEXDZPBGYQQ-UHFFFAOYSA-N

InChI=1S/C16H20O2/c1-3-13-11(2)14(16(17)18)9-10-15(13)12-7-5-4-6-8-12/h4-8,10-11,13-14H,3,9H2,1-2H3,(H,17,18)

HIDE SMILES / InChI

Molecular Formula	C16H20O2
Molecular Weight	244.3288
Charge	0
Count

Stereochemistry	MIXED
Additional Stereochemistry	No
Defined Stereocenters	0 / 3
E/Z Centers	0
Optical Activity	UNSPECIFIED

Description
Sources: https://www.ncbi.nlm.nih.gov/pubmed/5544232 | https://www.ncbi.nlm.nih.gov/pubmed/12255249

Fenestrel (ORF-3858) is a nonsteroidal antizygotic compound. It antagonizes progesterone. Fenestrel is a post-coital contraceptive.

Originator

Approval Year

PubMed

PubMed

Title	Date	PubMed
Inhibition of embryonic development in Rana pipiens by 2-methyl-3-ethyl-4-phenyl-4-cyclohexene carboxylic acid (ORF 3858).	1974-01	4543808
[Critical study of new contraceptive methods].	1971-01-23	5544232
Post-coital oral contraception.	1966	12255249

Substance Class	Chemical Created by `admin` on `Mon Mar 31 17:56:52 GMT 2025` Edited by `admin` on `Mon Mar 31 17:56:52 GMT 2025`
Record UNII	LEC4215V9R
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

Fenestrel

Official Name

English

ORF-3858

Preferred Name

English

5-Ethyl-6-methyl-4-phenyl-3-cyclohexene-1-carboxylic acid

Systematic Name

English

fenestrel [INN]

Common Name

English

NSC-86465

Code

English

3-Cyclohexene-1-carboxylic acid, 5-ethyl-6-methyl-4-phenyl-

Systematic Name

English

FENESTREL [USAN]

Common Name

English

Classification Tree Code System Code

NCI_THESAURUS

C2182

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

Code System Code Type Description

NCI_THESAURUS

C80684

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

PRIMARY

NSC

86465

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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INN

2425

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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SMS_ID

100000081271

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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FDA UNII

LEC4215V9R

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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MESH

C004381

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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WIKIPEDIA

Fenestrel

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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ChEMBL

CHEMBL1699033

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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CAS

7698-97-7

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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EVMPD

SUB07557MIG

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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PUBCHEM

24371

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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EPA CompTox

DTXSID20864106

Created by admin on Mon Mar 31 17:56:52 GMT 2025 , Edited by admin on Mon Mar 31 17:56:52 GMT 2025

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Related Record Type Details


					LEC4215V9R

Fenestrel

ACTIVE MOIETY

Amount: