Art. -Nr.: HY-113342

7-Ketocholesterol

6 Cited Publications

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Based on 6 publication(s) in Google Scholar

7-Ketocholesterol is an oxidation product of cholesterol, widely present in atherosclerotic plaques, and has a stronger atherogenic effect than cholesterol. 7-Ketocholesterol can inhibit the rate-limiting enzymes involved in bile acid and cholesterol synthesis, such as cholesterol 7α-hydroxylase and HMG-CoA reductase. 7-Ketocholesterol exhibits pro-inflammatory effects both in vivo and in vitro and can induce cell apoptosis (apoptosis).

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Reinheit: 99.87%
CAS. Nr.: 566-28-9
Formel: C₂₇H₄₄O₂
Molecular Weight:400.64

Speicherung:

-20°C, protect from light

* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

7-Ketocholesterol Chemical Structure

CAS. Nr.: 566-28-9

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Biologische Aktivität
- Beschreibung
- IC₅₀ & Target
- Cellular Effect
- In Vitro
- In Vivo
Chemical Information
Publications (6)
Lösungsmittel & Löslichkeit
- In Vitro
- In Vivo
Reinheit & Dokumentation
Verweise
Help & FAQs
Classifications
Bioz

Biologische Aktivität

Beschreibung

IC₅₀ & Target

Human Endogenous Metabolite

Alle Endogenous Metabolite Isoform-spezifische Produkte anzeigen :

Alle p38 MAPK Isoform-spezifische Produkte anzeigen :

Cellular Effect

Cell Line	Type	Value	Description	References
ARPE-19	IC₅₀	32.3 μM Compound: 4	Cytotoxicity against human ARPE19 cells assessed as cell viability after 48 hrs by alamar blue assay Cytotoxicity against human ARPE19 cells assessed as cell viability after 48 hrs by alamar blue assay	[PMID: 21797280]
C6	IC₅₀	20 μM Compound: 7KC	Growth inhibition of rat C6 cells after 24 hrs by trypan blue-based cell counting method Growth inhibition of rat C6 cells after 24 hrs by trypan blue-based cell counting method	[PMID: 24211631]
HEK293	EC₅₀	8.7 μM Compound: 9	Binding affinity to FLAG/tGFP-tagged NPC1 I1061T mutant (unknown origin) expressed in HEK293 cells assessed as localization after 24 hrs by fluorescence microscopy Binding affinity to FLAG/tGFP-tagged NPC1 I1061T mutant (unknown origin) expressed in HEK293 cells assessed as localization after 24 hrs by fluorescence microscopy	[PMID: 24928400]
HEK293	EC₅₀	9.7 μM Compound: 6	Binding affinity to human GFP-tagged NPC1L1 L1072T/L1168I mutant expressed in HEK293 cells assessed as localization to endoplasmic reticulum and plasma membrane after 24 hrs by fluorescence microscopic analysis Binding affinity to human GFP-tagged NPC1L1 L1072T/L1168I mutant expressed in HEK293 cells assessed as localization to endoplasmic reticulum and plasma membrane after 24 hrs by fluorescence microscopic analysis	[PMID: 23830695]
HT-29	IC₅₀	25.7 μM Compound: 4	Cytotoxicity against human HT-29 cells assessed as cell viability after 48 hrs by alamar blue assay Cytotoxicity against human HT-29 cells assessed as cell viability after 48 hrs by alamar blue assay	[PMID: 21797280]
HT-29	IC₅₀	25.7 μM Compound: 6	Cytotoxicity against human HT-29 cells after 48 hrs by Alamar blue assay Cytotoxicity against human HT-29 cells after 48 hrs by Alamar blue assay	[PMID: 20931970]
Vero	IC₅₀	75 μM Compound: 1	Cytotoxicity against african green monkey Vero cells by tetrazolium dye reduction assay Cytotoxicity against african green monkey Vero cells by tetrazolium dye reduction assay	[PMID: 24084159]

In Vitro

7-Ketocholesterol (50 μM, 2.5-2 hours) can enhance leukocyte-endothelial cell adhesion via the p38 MAPK pathway^[4].
7-Ketocholesterol (2.5-40 μg/mL, 24 hours) induces apoptosis in a dose-dependent manner by activating caspase-3/7, -8, and -12 in human microvascular endothelial cells^[5].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Western Blot Analysis^[4]

Cell Line:

Human umbilical vein endothelial cells (HUVECs)
Concentration:

50 μM
Incubation Time:

0.5-2 h
Result:

Stimulated the phosphorylation of p38 MAPK, reaching a peak within 30-120 minutes, with no significant effect on JNK.
Enhanced the adhesion of THP-1 cells to HUVECs and upregulated the expression of E-selectin.
Promoted the expression of E-selectin by activating the transcription factor ATF-2.

Cell Viability Assay^[5]

Cell Line:

Human umbilical vein endothelial cells (HUVECs)
Concentration:

2.5, 5, 10, 15, 20, 40 μg/mL
Incubation Time:

24 h
Result:

The average cell viability of HMVEC cells treated with 7-Ketocholesterol at concentrations of 40, 20, 10, 5, and 2.5 μg/ml for 24 hours was 45.33%, 72.83% (p < 0.001), 82.7% (p < 0.05), 88.47%, and 88.5% (p > 0.05), respectively, while the untreated control was 88.83%.

In Vivo

7-Ketocholesterol (5-20 mg/mL, administered via biodegradable wafers implanted into the anterior chamber of rats' eyes, single dose) exhibited pro-angiogenic and pro-inflammatory effects in Brown Norway rats^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model:

Brown Norway rats (150-200 g)^[3]
Dosage:

5, 10, 15, 20 mg/mL
Administration:

Implanting biodegradable wafers containing 7-Ketocholesterol into the anterior chamber of rats' eyes, single dose
Result:

Significantly increased angiogenesis, with a large infiltration of macrophages detected by immunohistochemistry.
Promoted the growth of new blood vessels originating from the limbus and extending through the cornea, peaking between days 7 and 10 after implantation.
Led to a marked increase in vascular endothelial growth factor (VEGF), IL-1b, and GRO/KC in the aqueous humor.

Chemical Information

CAS. Nr. 566-28-9
Appearance Solid
Molecular Weight 400.64
Formel C₂₇H₄₄O₂
Color Off-white to light yellow
SMILES

C[C@]1(CC2)[C@](CC[C@]1([H])[C@H](C)CCCC(C)C)([H])[C@@](C(C=C3C[C@H]4O)=O)([H])[C@@]2([H])[C@]3(CC4)C
Structure Classification
- Terpenoids
- Triterpenes
Initial Source
- Endogenous metabolite
human
Versand

Room temperature in continental US; may vary elsewhere.
Speicherung

-20°C, protect from light

* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Publications (6)

All Flow CytometryIn Vivo Efficacy StudyCell Imaging/Staining

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Journal Impact Factor

ACS Nano

Immune Modulatory Oxysterols Produced from Cholesterol-Containing Lipid Nanoparticles Regulate Tumor Growth. [Abstract]

2026 Mar 13. PMID: 41825961
Biomaterials

Cardiac and skeletal muscle delivery of biotherapeutics with a blood vessel epicardial substance-targeting peptide. [Abstract]

2026 Jun:329:123986. PMID: 41506143
Nano Today

2025 Oct.

7-Ketocholesterol purchased from MedChemExpress. Usage Cited in: Nano Today. 2025 Oct.

Confocal fluorescence images and quantitative fluorescence analysis of the RAW264.7 cells incubated with fluorescently labeled 7-Ketocholesterol /Chol-doped BPSNs after siRNA knockdown of receptors (CD36, LOX-1, MSR1, and LDLR). Scale bar: 20 μm.
Cell Death Discov

RBM17 promotes hepatocellular carcinoma progression by regulating lipid metabolism and immune microenvironment: implications for therapeutic targeting. [Abstract]

2025 Jul 23;11(1):338. PMID: 40702000

7-Ketocholesterol purchased from MedChemExpress. Usage Cited in: Cell Death Discov. 2025 Jul 23;11(1):338. [Abstract]

We also confirmed that the infiltration of M2 macrophages induced by RBM17-OE can be inhibited by T-CA inhibitors (7-Ketocholesterol, 10 μM, 24 h) in vivo experiment.

7-Ketocholesterol purchased from MedChemExpress. Usage Cited in: Cell Death Discov. 2025 Jul 23;11(1):338. [Abstract]

Comparing the effects of siHACD3 and 7-Ketocholesterol on serum FFA concentration in mice through in vivo experiments. Data was analyzed using t-tests. ns represents no significant difference.
Cell Chem Biol

Transient hydroxycholesterol treatment restrains TCR signaling to promote long-term immunity. [Abstract]

2024 May 16;31(5):920-931.e6. PMID: 38759618
Anal Chim Acta

2026 Jun 16;1418:345855.

Lösungsmittel & Löslichkeit

In Vitro:

Ethanol : 25 mg/mL (62.40 mM; Need ultrasonic)

DMSO : 6.06 mg/mL (15.13 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

2.4960 mL

12.4800 mL

24.9601 mL

5 mM

0.4992 mL

2.4960 mL

4.9920 mL

10 mM

0.2496 mL

1.2480 mL

2.4960 mL

Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.

Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molaritätsrechner

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass Mass

Konzentration Konzentration

Volumen Volumen

Molecular Weight Molecular Weight

Verdünnungsrechner

Konzentration _{(Stammlösung)} × Volumen _{(Stammlösung)} = Konzentration _{(Ziellösung)} × Volumen _{(Ziellösung)}

Konzentration _{(Stammlösung)} Konzentration _{(Stammlösung)}

Volumen _{(Stammlösung)} Volumen _{(Stammlösung)}

Konzentration _{(Ziellösung)} Konzentration _{(Ziellösung)}

Volumen _{(Ziellösung)} Volumen _{(Ziellösung)}

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

Stock Solution Working Solution

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline

Solubility: ≥ 0.62 mg/mL (1.55 mM); Clear solution

This protocol yields a clear solution of ≥ 0.62 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (6.2 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)

Solubility: ≥ 0.61 mg/mL (1.52 mM); Clear solution

This protocol yields a clear solution of ≥ 0.61 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (6.1 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil

Solubility: ≥ 0.61 mg/mL (1.52 mM); Clear solution

This protocol yields a clear solution of ≥ 0.61 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (6.1 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Working solution concentration: 0.22 mg/mL

Reinheit & Dokumentation

Select Batch:

Reinheit: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (279 KB)
SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

Verweise

[1]. M A Lyons, et al. 7-Ketocholesterol. Int J Biochem Cell Biol. Mar-Apr 1999;31(3-4):369-75. [Content Brief]

[2]. Amelia Anderson, et al. 7-Ketocholesterol in disease and aging. Redox Biol. 2020 Jan;29:101380. [Content Brief]

[3]. Amaral J, et al. 7-Ketocholesterol induces inflammation and angiogenesis in vivo: a novel rat model. PLoS One. 2013;8(2):e56099. [Content Brief]

[4]. Tani M, et al. 7-Ketocholesterol enhances leukocyte adhesion to endothelial cells via p38MAPK pathway. PLoS One. 2018 Jul 31;13(7):e0200499. [Content Brief]

[5]. Luthra S, et al. 7-Ketocholesterol activates caspases-3/7,-8, and-12 in human microvascular endothelial cells in vitro[J]. Microvascular research, 2008, 75(3): 343-350. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO / Ethanol	1 mM	2.4960 mL	12.4800 mL	24.9601 mL	62.4002 mL
	5 mM	0.4992 mL	2.4960 mL	4.9920 mL	12.4800 mL
	10 mM	0.2496 mL	1.2480 mL	2.4960 mL	6.2400 mL
	15 mM	0.1664 mL	0.8320 mL	1.6640 mL	4.1600 mL
Ethanol	20 mM	0.1248 mL	0.6240 mL	1.2480 mL	3.1200 mL
	25 mM	0.0998 mL	0.4992 mL	0.9984 mL	2.4960 mL
	30 mM	0.0832 mL	0.4160 mL	0.8320 mL	2.0800 mL
	40 mM	0.0624 mL	0.3120 mL	0.6240 mL	1.5600 mL
	50 mM	0.0499 mL	0.2496 mL	0.4992 mL	1.2480 mL
	60 mM	0.0416 mL	0.2080 mL	0.4160 mL	1.0400 mL

Keywords

7-Ketocholesterol

6 Cited Publications

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7-Ketocholesterol

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Publications Citing Use of MedChemExpress (MCE) 7-Ketocholesterol

Alle Endogenous Metabolite Isoform-spezifische Produkte anzeigen

Alle p38 MAPK Isoform-spezifische Produkte anzeigen

Biologische Aktivität

Chemical Information

Publications (6)

Lösungsmittel & Löslichkeit

Reinheit & Dokumentation

Verweise

Help & FAQs

Complete Stock Solution Preparation Table

7-Ketocholesterol Related Classifications

HY-113342 Related Classifications