5α-Cholestan-3-one - ≥97% , CAS No.566-88-1

CAS: 566-88-1 Cat. No.: C171020 Molecular Weight: 386.65
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
5 alpha -Cholestan-3-one | 5a-Cholestanone | AKOS025295477 | 5a(H)-Cholestan-3-one | (5S,8R,9S,10S,13R,14S,17R)-10,13-Dimethyl-17-((R)-6-methylheptan-2-yl)tetradecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one | (5alpha)-Cholestanone | (5S,8R,9S,10S,13R,14S
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
C171020-250mg
4
$36.90
1g
C171020-1g
1
$129.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

It is employed as a intermediate for organic synthesis.

Specifications

Synonyms
5 alpha -Cholestan-3-one | 5a-Cholestanone | AKOS025295477 | 5a(H)-Cholestan-3-one | (5S, 8R, 9S, 10S, 13R, 14S, 17R)-10, 13-Dimethyl-17-((R)-6-methylheptan-2-yl)tetradecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one | (5alpha)-Cholestanone | (5S, 8R, 9S, 10S, 13R, 14S
Specifications & Purity
≥97%
Storage
Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488186684
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488186684
Canonical SmilesCC(C)CCCC(C)C1CCC2C1(CCC3C2CCC4C3(CCC(=O)C4)C)C
IUPAC Name(5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
InChIKeyPESKGJQREUXSRR-UXIWKSIVSA-N
INCHI1S/C27H46O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h18-20,22-25H,6-17H2,1-5H3/t19-,20+,22+,23-,24+,25+,26+,27-/m1/s1
Isomeric SMILES C[C@H](CCCC(C)C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC[C@@H]4[C@@]3(CCC(=O)C4)C)C
WGK Germany 3
Molecular Weight 386.65
Reaxy-Rn 2059964
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2059964&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
SubclassCholestane steroids
Intermediate Tree Nodes Not available
Direct ParentCholesterols and derivatives
Alternative Parents 3-oxo-5-alpha-steroids  Cyclic ketones  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAliphatic homopolycyclic compounds
Substituents Cholesterol-skeleton - 3-oxo-5-alpha-steroid - Oxosteroid - 3-oxosteroid - Cyclic ketone - Ketone - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as cholesterols and derivatives. These are compounds containing a 3-hydroxylated cholestane core.
External Descriptors Cholesterol and derivatives
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
LDLR Tchem LDL receptor (185 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLCO1B1 Tchem Solute carrier organic anion transporter family member 1B1 (2672 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Mus musculus (284745 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

9 results found

Lot NumberCertificate TypeDateItem
B2327182Certificate of AnalysisDec 12, 2025 C171020
B2327193Certificate of AnalysisDec 12, 2025 C171020
K2229419Certificate of AnalysisSep 08, 2025 C171020
K2229421Certificate of AnalysisSep 08, 2025 C171020
H2205123Certificate of AnalysisMay 12, 2025 C171020
H2205128Certificate of AnalysisMay 12, 2025 C171020
L2116477Certificate of AnalysisSep 10, 2024 C171020
K2105671Certificate of AnalysisAug 20, 2024 C171020
G2220590Certificate of AnalysisJun 24, 2022 C171020
Chemical and Physical Properties
SolubilityInsoluble in water.
Melt Point(°C)128-130 °C (lit.)
Molecular Weight386.700 g/mol
XLogP38.900
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count1
Rotatable Bond Count5
Exact Mass386.355 Da
Monoisotopic Mass386.355 Da
Topological Polar Surface Area17.100 Ų
Heavy Atom Count28
Formal Charge0
Complexity579.000
Isotope Atom Count0
Defined Atom Stereocenter Count8
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
References
1. Yao Guo, Guangjie Shu, Ziyang Zhang, Xiaoshuang Hu, Huiru Huang, Wenxin Lu, Miaomiao Zhu, Bing Liu, Shenshen Zhang.  (2025)  Fisetin ameliorates atherosclerosis through activating FXR-mediated hepatic cholesterol metabolism and transintestinal cholesterol excretion.  FOOD RESEARCH INTERNATIONAL,      [PMID:40922153] [10.1016/j.foodres.2025.117002]
Solution Calculators
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