Catalog No.S1914

Pregnenolone Chemical Structure

Molecular Weight(MW): 316.48

Pregnenolone is an endogenous steroid hormone, used in the treatment of fatigue, Alzheimer’s disease, trauma and injuries.

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In DMSO USD 130 In stock
USD 97 In stock
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Biological Activity

Description Pregnenolone is an endogenous steroid hormone, used in the treatment of fatigue, Alzheimer’s disease, trauma and injuries.
progestogen Receptor [1]
In vitro

Pregnenolone induces a large, dose-related increase of both the rate and extent of MAP2-induced tubulin assembly, whereas progesterone, inactive per se, counteracted the stimulatory effect of Pregnenolone. Pregnenolone-increased assembly of microtubules produces a completely normal structure. [1] Pregnenolone preserves microtubule abundance and promotes cell movement during epiboly. [2] Pregnenolone results in dramatic reduction in GR nuclear localization in mouse hippocampal cell line (HT-22). Pregnenolone has neuroprotective effects against both glutamate and amyloid beta protein neuropathology. [3]

In vivo Pregnenolone sustains its proliferative activity in vivo and stimulates the growth of LNCaP-tumor xenografts in intact male SCID mice as well as in castrated animals. Pregnenolone is shown to activate transcription through the LNCaP androgen receptor (AR), but not the wild-type AR. [4] Pregnenolone results in a significant decrease in the accumulation of astrocytes in the proximity of the wound and in a decreased bromodeoxyuridine incorporation in reactive astrocytes of rats. [5] Pregnenolone administration results in elevations in downstream neurosteroids such as allopregnanolone, a molecule with neuroprotective effects that also increases neurogenesis, decreases apoptosis and inflammation, modulates the hypothalamic-pituitary-adrenal axis, and markedly increases GABA(A) receptor responses. Pregnenolone administration elevates pregnenolone sulfate, a neurosteroid that positively modulates NMDA receptors. [6]


Solubility (25°C)

In vitro DMSO 22 mg/mL (69.51 mM)
Ethanol 22 mg/mL (69.51 mM)
Water Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 316.48


CAS No. 145-13-1
Storage powder
in solvent
Synonyms N/A

Bio Calculators

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Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT02826577 Not yet recruiting Perceived Social Isolation University of Chicago December 2016 Phase 2
NCT02582905 Recruiting Alcohol Use Disorder|Bipolar Disorder University of Texas Southwestern Medical Center|University of Miami May 2016 Phase 4
NCT02811939 Recruiting Healthy Yale University March 2016 Phase 1
NCT02627508 Recruiting Autism Spectrum Disorder|Autism Stanford University|Simons Foundation December 2015 Phase 2
NCT02439814 Completed Marijuana Dependence Medical University of South Carolina June 2015 Phase 2
NCT02576912 Recruiting Healthy Yale University February 2015 Phase 1

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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Estrogen/progestogen Receptor Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID