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188174

Sigma-Aldrich

(+)-4-Cholesten-3-one

98%

Synonym(s):

3-Keto-4-cholestene, 3-Oxo-4-cholestene, 4-Cholesten-3-one

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1 G
$34.00
10 G
$323.00

$34.00

Available to ship onApril 22, 2025Details

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1 G
$34.00
10 G
$323.00

About This Item

Empirical Formula (Hill Notation):
C27H44O
CAS Number:
601-57-0
Molecular Weight:
384.64
Beilstein/REAXYS Number:
2224119
EC Number:
210-005-1
MDL number:
MFCD00003663
UNSPSC Code:
12352115
PubChem Substance ID:
24851303
NACRES:
NA.22

$34.00

Available to ship onApril 22, 2025Details

Request a Bulk Order

Quality Level

100

assay

98%

form

solid

optical activity

[α]23/D +91.0°, c = 2 in chloroform

mp

79-81 °C (lit.)

functional group

ketone

SMILES string

[H][C@@]12[C@]([C@](CC3)(C)C(CC2)=CC3=O)([H])CC[C@@]4(C)[C@@]1([H])CC[C@]4([H])[C@]([H])(C)CCCC(C)C

InChI

1S/C27H44O/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/h17-19,22-25H,6-16H2,1-5H3/t19-,22+,23-,24+,25+,26+,27-/m1/s1

InChI key

NYOXRYYXRWJDKP-GYKMGIIDSA-N

Related Categories

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
STBK8231
STBH6865
STBF4322V
STBC4769V
10120TH

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Scientific reports, 7, 41007-41007 (2017-01-25)
A chemically-activatable alkynyl steroid analogue probe has been synthesized for visualizing the lipid raft membrane domains by Raman microscopy. The Raman probe, in which ring A of its steroid backbone is replaced with an alkynyl group, was designed to enable
Liang-Bin Xiong et al.
Microbial cell factories, 19(1), 80-80 (2020-04-02)
The bioconversion of phytosterols into high value-added steroidal intermediates, including the 9α-hydroxy-4-androstene-3,17-dione (9-OHAD) and 22-hydroxy-23,24-bisnorchol-4-ene-3-one (4-HBC), is the cornerstone in steroid pharmaceutical industry. However, the low transportation efficiency of hydrophobic substrates into mycobacterial cells severely limits the transformation. In this
Yin-Ru Chiang et al.
Applied and environmental microbiology, 74(1), 107-113 (2007-11-13)
The anoxic metabolism of cholesterol was studied in the denitrifying bacterium Sterolibacterium denitrificans, which was grown with cholesterol and nitrate. Cholest-4-en-3-one was identified before as the product of cholesterol dehydrogenase/isomerase, the first enzyme of the pathway. The postulated second enzyme
P Liu et al.
The Journal of biological chemistry, 275(41), 31648-31654 (2000-08-05)
Platelet-derived growth factor receptor beta (PDGFRbeta) in fibroblasts is concentrated in caveolae where it controls the tyrosine phosphorylation of multiple proteins. Caveolae are enriched in cholesterol and sphingolipids, but the role of these lipids in PDGFR signal transduction is unknown.
Jonathan B Johnston et al.
The Journal of biological chemistry, 285(47), 36352-36360 (2010-09-17)
One challenge to the development of new antitubercular drugs is the existence of multiple virulent strains that differ genetically. We and others have recently demonstrated that CYP125A1 is a steroid C(26)-monooxygenase that plays a key role in cholesterol catabolism in
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Questions

  1. In the certificate of 4-cholesten-3-one 188174-1G lot # STBH6865 there is no information about the experiation date. Could you please sent me this information?

    1 answer

    1. This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.

      For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

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