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| SKU | Size | Availability |
Price | Qty |
|---|---|---|---|---|
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P129412-5g
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5g |
2
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$103.90
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P129412-25g
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25g |
2
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$468.90
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P129412-100g
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100g |
Available within 4-8 weeks(?)
Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!
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$1,684.90
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P129412-500g
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500g |
1
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$7,581.90
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Endogenous steroid prohormone and neurosteroid. PXR agonist.
| Synonyms | 3b-Hydroxypregn-5-en-20-one | PREGNENOLONE [WHO-DD] | CS-1970 | PREGNENOLONE [INN] | 73R90F7MQ8 | NSC 1616 | Skinostelon | Spectrum5_002057 | 5-Pregnen-3beta-ol-20-one, >=98% | DB02789 | Tox21_112011 | GTPL2376 | HMS3884G16 | Pregnolone | 3beta-Hydroxy-5- |
|---|---|
| Specifications & Purity | Moligand™, ≥98% |
| Biochemical and Physiological Mechanisms | One of a small number of "neurosteroids," steroids synthesized in the brain rather than peripheral sources. Decreased levels of these neurosteroids has been implicated in rodent cognitive decline with age, but studies in humans have been contradictory.End |
| Storage Temp | Store at 2-8°C |
| Shipped In |
Wet ice This product requires cold chain shipping. Ground and other economy services are not available. |
| Grade | Moligand™ |
| Note | Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details. |
| Product Description |
Pregnenolone is an endogenous neurosteroid that is involved in the steroidogenesis of progesterone, glucocorticoids, mineralocorticoids, androgens, and estrogens, making it a prohormone. It has been observed to inhibit GABA-gated chloride currents by enhancing receptor desensitization. Pregnenolone is an inhibitor of GABA Receptor and an activator of PXR. |
Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Lipids and lipid-like molecules |
| Class | Steroids and steroid derivatives |
| Subclass | Pregnane steroids |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Gluco/mineralocorticoids, progestogins and derivatives |
| Alternative Parents | 20-oxosteroids 3-beta-hydroxysteroids 3-beta-hydroxy delta-5-steroids Delta-5-steroids Secondary alcohols Ketones Cyclic alcohols and derivatives Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aliphatic homopolycyclic compounds |
| Substituents | Progestogin-skeleton - 20-oxosteroid - 3-hydroxy-delta-5-steroid - 3-hydroxysteroid - 3-beta-hydroxysteroid - 3-beta-hydroxy-delta-5-steroid - Oxosteroid - Hydroxysteroid - Delta-5-steroid - Cyclic alcohol - Secondary alcohol - Ketone - Organic oxygen compound - Hydrocarbon derivative - Carbonyl group - Alcohol - Organooxygen compound - Organic oxide - Aliphatic homopolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety. |
| External Descriptors | C21 steroids (gluco/mineralocorticoids, progestogins) and derivatives |
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| Mechanism of Action | Action Type | target ID | Target Name | Target Type | Target Organism | Binding Site Name | References |
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| Pubchem Sid | 504751770 |
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| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504751770 |
| 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 |
| INCHI | InChI=1S/C21H32O2/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/h4,15-19,23H,5-12H2,1-3H3/t15-,16-,17+,18-,19-,20-,21+/m0/s1 |
| InChIKey | ORNBQBCIOKFOEO-QGVNFLHTSA-N |
| Smiles | CC(=O)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)O)C)C |
| Isomeric 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 |
| Molecular Weight | 316.48 |
| Reaxy-Rn | 1915502 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1915502&ln= |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Jun 15, 2024 | P129412 | |
| Certificate of Analysis | Sep 21, 2023 | P129412 | |
| Certificate of Analysis | Aug 04, 2022 | P129412 | |
| Certificate of Analysis | Jun 23, 2022 | P129412 | |
| Certificate of Analysis | Jun 23, 2022 | P129412 | |
| Certificate of Analysis | Jun 23, 2022 | P129412 | |
| Certificate of Analysis | Jun 23, 2022 | P129412 | |
| Certificate of Analysis | Jun 23, 2022 | P129412 | |
| Certificate of Analysis | Jun 23, 2022 | P129412 | |
| Certificate of Analysis | Jun 23, 2022 | P129412 | |
| Certificate of Analysis | Jun 23, 2022 | P129412 | |
| Certificate of Analysis | Jun 23, 2022 | P129412 |
| Solubility | Soluble in ethanol (22 mg/ml at 25 °C), chloroform, and DMSO (22 mg/ml at 25 °C). Insoluble in water, , , DMSO 22 mg/mL Water Ethanol 22 mg/mL |
|---|---|
| Molecular Weight | 316.500 g/mol |
| XLogP3 | 4.200 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 1 |
| Exact Mass | 316.24 Da |
| Monoisotopic Mass | 316.24 Da |
| Topological Polar Surface Area | 37.300 Ų |
| Heavy Atom Count | 23 |
| Formal Charge | 0 |
| Complexity | 550.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 7 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
| 1. Ruosi Zhang, Mingdong Yao, Haidi Ma, Wenhai Xiao, Ying Wang, Yingjin Yuan. (2023) Modular Coculture to Reduce Substrate Competition and Off-Target Intermediates in Androstenedione Biosynthesis. ACS Synthetic Biology, 12 (3): (788–799). |
| 2. Xiao-San Li, Mao-Xun Yang, Yu-Hao Luo, He-Hui Zhan, Mei-Fang Chen, Yong-Mei Huang, Li Liu, Xue-Mei Yang. (2022) Design, Synthesis and Anticancer Activity of Novel Steroidal Derivatives with D-Ring Fused or Substituted N-Heterocyclic Systems. CHEMISTRY & BIODIVERSITY, 19 (10): (e202200648). |
| 3. Yaqin Jia, Zhe Wang, Yuyi Feng, Meixian Wang, Lili Jiang, Zhijun Yu, Xiaoguang Shao, Guiyuan He, Yong Liu. (2022) Validity of the association between five steroid hormones quantification and female infertility conditions: A new perspective for clinical diagnosis. STEROIDS, 186 (109086). |
| 4. Di Xu, Mengyun Wu, Xue Li, Mingyu Xia, Dongchun Liu, Yinghui Dai, Qing Yu, Bin Wu, Dong Wang. (2018) Cloning, prokaryotic expression and function of the Bufo bufo gargarizans 3β-hydroxysteroid dehydrogenase (3βHSD) gene. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 120 (673). |
| 5. Jixiu Deng, Pengshuai Zhang, Han Sun, Wang Rongrong, Binbin Wu, Yuemei Li, Beibei Feng, Haowei Sun, Shuoye Yang. (2025) Insight into the solid-liquid equilibrium behavior and apparent thermodynamic analysis of polymorphic pregnenolone (Form Ⅰ) in thirteen neat solvents. THERMOCHIMICA ACTA, (179979). |