Structured Summary
Abstract
A 21-carbon steroid, derived from CHOLESTEROL and found in steroid hormone-producing tissues. Pregnenolone is the precursor to GONADAL STEROID HORMONES and the adrenal CORTICOSTEROIDS.
Chemical Identity
Chemical Information
- Molecular Formula
- C21H32O2
- Molecular Weight
- 316.5 g/mol
- CAS Registry No.
- 145-13-1
- IUPAC Name
- 1-[(3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone
- InChIKey
- ORNBQBCIOKFOEO-QGVNFLHTSA-N
- SMILES
- CC(=O)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC=C4[C@@]3(CC[C@@H](C4)O)C)C
- MeSH Unique ID
- D011284
- Source
- PubChem CID 8955
MeSH Record
Classification
Broader headings
Narrower headings
Related Concepts
Knowledge Graph
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MeSH Record
Synonyms
2 entry terms
- 5-Pregnen-3-beta-ol-20-one
- 5 Pregnen 3 beta ol 20 one
MeSH Record
Aspects Covered
29 allowable subheadings
Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, deficiency, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.
MeSH Record
Indexing Annotation
do not confuse with PREGNANOLONE
MeSH Hierarchy
Tree Numbers
AMA Style
References
- National Library of Medicine. Pregnenolone. Medical Subject Headings (MeSH). 2026. Unique ID D011284. http://id.nlm.nih.gov/mesh/2026/D011284
- Pregnenolone. In: Wikipedia. https://en.wikipedia.org/wiki/Pregnenolone
- Pregnenolone. In: Wikidata. https://www.wikidata.org/wiki/Q412158
- Pregnenolone. In: PubChem Compound. CID 8955. https://pubchem.ncbi.nlm.nih.gov/compound/8955