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Details

Stereochemistry ABSOLUTE
Molecular Formula C21H28O2
Molecular Weight 312.4458
Optical Activity UNSPECIFIED
Defined Stereocenters 6 / 6
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of 9.BETA.,10.ALPHA.,17.ALPHA.-PREGNA-4,6-DIENE-3,20-DIONE

SMILES

CC(=O)[C@@H]1CC[C@H]2[C@@H]3C=CC4=CC(=O)CC[C@@]4(C)[C@@H]3CC[C@]12C

InChI

InChIKey=JGMOKGBVKVMRFX-POHNSKBLSA-N
InChI=1S/C21H28O2/c1-13(22)17-6-7-18-16-5-4-14-12-15(23)8-10-20(14,2)19(16)9-11-21(17,18)3/h4-5,12,16-19H,6-11H2,1-3H3/t16-,17-,18-,19+,20+,21+/m0/s1

HIDE SMILES / InChI

Molecular Formula C21H28O2
Molecular Weight 312.4458
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 6 / 6
E/Z Centers 0
Optical Activity UNSPECIFIED

9β,10α,17α-pregna-4,6-diene-3,20-dione ((8S,9R,10S,13S,14S,17R)-17-Acetyl-10,13-dimethyl-8,9,10,11,12,13,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3(2H)-one) is an isomer of Dydrogesterone, a synthetic progestin largely used in hormone therapy, on the central nervous system by studying two markers of the neuroendocrine function. 9β,10α,17α-pregna-4,6-diene-3,20-dione is one of major impurities of dydrogesterone. The physiological and toxicological properties of this compound have not been evaluated in humans.

Approval Year

Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
PubMed

PubMed

TitleDatePubMed
Comparative spectra analysis (CoSA): spectra as three-dimensional molecular descriptors for the prediction of biological activities.
1999-10-26

Sample Use Guides

In Vivo Use Guide
Unknown
Route of Administration: Unknown
In Vitro Use Guide
Unknown
Substance Class Chemical
Created
by admin
on Mon Mar 31 21:20:27 GMT 2025
Edited
by admin
on Mon Mar 31 21:20:27 GMT 2025
Record UNII
S48G465CS3
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
DYDROGESTERONE IMPURITY C [EP IMPURITY]
Preferred Name English
9.BETA.,10.ALPHA.,17.ALPHA.-PREGNA-4,6-DIENE-3,20-DIONE
Systematic Name English
PREGNA-4,6-DIENE-3,20-DIONE, (9.BETA.,10.ALPHA.,17.ALPHA.)-
Systematic Name English
Code System Code Type Description
FDA UNII
S48G465CS3
Created by admin on Mon Mar 31 21:20:27 GMT 2025 , Edited by admin on Mon Mar 31 21:20:27 GMT 2025
PRIMARY
CAS
246038-13-1
Created by admin on Mon Mar 31 21:20:27 GMT 2025 , Edited by admin on Mon Mar 31 21:20:27 GMT 2025
PRIMARY
EPA CompTox
DTXSID70179353
Created by admin on Mon Mar 31 21:20:27 GMT 2025 , Edited by admin on Mon Mar 31 21:20:27 GMT 2025
PRIMARY
PUBCHEM
1547487
Created by admin on Mon Mar 31 21:20:27 GMT 2025 , Edited by admin on Mon Mar 31 21:20:27 GMT 2025
PRIMARY
Related Record Type Details
PARENT -> IMPURITY