Cat. No.: HY-16940

24(S)-Hydroxycholesterol

(Synonyms: 24S-OHC; 24S-HC; Cerebrosterol)

1 Cited Publications

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Based on 1 publication(s) in Google Scholar

24(S)-Hydroxycholesterol (24S-OHC), the major brain cholesterol metabolite, plays an important role to maintain homeostasis of cholesterol in the brain. 24(S)-Hydroxycholesterol (24S-OHC) is one of the most efficient endogenous LXR agonist known and is present in the brain and in the circulation at relatively high levels. 24(S)-Hydroxycholesterol (24S-OHC) is a very potent, direct, and selective positive allosteric modulator of NMDARs with a mechanism that does not overlapthat of other allosteric modulators.

For research use only. We do not sell to patients.

Purity: 99.75%
CAS No.: 474-73-7
Formula: C₂₇H₄₆O₂
Molecular Weight:402.65

Storage:

Powder -20°C, 3 years ; In solvent -80°C, 6 months , -20°C, 1 month

24(S)-Hydroxycholesterol Chemical Structure

CAS No.: 474-73-7

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Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- IC₅₀ & Target
- Cellular Effect
- In Vitro
Chemical Information
Publications (1)
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

IC₅₀ & Target

NMDA Receptor

Human Endogenous Metabolite

All iGluR Isoforms :

All Endogenous Metabolite Isoforms :

Cellular Effect

Cell Line	Type	Value	Description	References
HEK293	EC₅₀	150 nM Compound: 6; 24(S)-HC	Positive allosteric modulation of recombinant human GluN1/GluN2A receptor stably expressed in HEK293 cells assessed as increase in glycine/L-glutamate-induced channel current at -70 mV holding potential by IonWork two-electrode voltage clamp method Positive allosteric modulation of recombinant human GluN1/GluN2A receptor stably expressed in HEK293 cells assessed as increase in glycine/L-glutamate-induced channel current at -70 mV holding potential by IonWork two-electrode voltage clamp method	[PMID: 31390523]
HEK293	EC₅₀	530 nM Compound: 6; 24(S)-HC	Positive allosteric modulation of recombinant human GluN1/GluN2B receptor stably expressed in HEK293 cells assessed as increase in glycine/L-glutamate-induced channel current at -70 mV holding potential by IonWork two-electrode voltage clamp method Positive allosteric modulation of recombinant human GluN1/GluN2B receptor stably expressed in HEK293 cells assessed as increase in glycine/L-glutamate-induced channel current at -70 mV holding potential by IonWork two-electrode voltage clamp method	[PMID: 31390523]

In Vitro

24(S)-Hydroxycholesterol (1, 10, 30 μM) can protect isolated rat retina from damage caused by elevated hydrostatic pressure^[4].

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

Chemical Information

CAS No. 474-73-7
Appearance Solid
Molecular Weight 402.65
Formula C₂₇H₄₆O₂
Color White to off-white
SMILES

C[C@H](CC[C@H](O)C(C)C)[C@H]1CC[C@@]2([H])[C@]3([H])CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@@]21C
Synonyms

24S-OHC; 24S-HC; Cerebrosterol
Structure Classification
- Steroids
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
In solvent	-80°C	6 months
	-20°C	1 month

Publications (1)

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Journal Impact Factor

Anal Chim Acta

2026 Jun 16;1418:345855.

Solvent & Solubility

In Vitro:

DMSO : 12.5 mg/mL (31.04 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Ethanol : 12.5 mg/mL (31.04 mM; ultrasonic and warming and heat to 60°C)

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

2.4835 mL

12.4177 mL

24.8355 mL

5 mM

0.4967 mL

2.4835 mL

4.9671 mL

10 mM

0.2484 mL

1.2418 mL

2.4835 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. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator

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

Mass Mass

Concentration Concentration

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Molecular Weight Molecular Weight

Dilution Calculator

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In Vivo:

Working Solution

For the following dissolution methods, please prepare the working solution directly:

It is recommended to prepare fresh solutions and use them promptly within a short period of time.

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: 50% PEG300 50% Saline

Solubility: 5 mg/mL (12.42 mM); Clear solution; Need ultrasonic

Protocol 2

Add each solvent one by one: 0.5% CMC-Na/saline water

Solubility: 2.5 mg/mL (6.21 mM); Suspended solution; Need ultrasonic

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (273 KB)
SDS (254 KB)
- English - EN (254 KB)
- Français - FR (254 KB)
- Deutsch - DE (254 KB)
- Norwegian - NO (254 KB)
- Español - ES (254 KB)
- Swedish - SV (254 KB)
- Italian - IT (254 KB)
- Korean - KR (254 KB)
- Portuguese - PT (254 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)

References

[1]. Yuki Kimura, et al. Tocopherol suppresses 24(S)-hydroxycholesterol-induced cell death via inhibition of CaMKII phosphorylation. Biochimie. 2018 Oct;153:203-209. [Content Brief]

[2]. M Shafaati, et al. Enhanced production of 24S-hydroxycholesterol is not sufficient to drive liver X receptor target genes in vivo. J Intern Med. 2011 Oct;270(4):377-87. [Content Brief]

[3]. Steven M Paul, et al. The major brain cholesterol metabolite 24(S)-hydroxycholesterol is a potent allosteric modulator of N-methyl-D-aspartate receptors. J Neurosci. 2013 Oct 30;33(44):17290-300. [Content Brief]

[4]. Ishikawa M, et al. 24(S)-Hydroxycholesterol protects the ex vivo rat retina from injury by elevated hydrostatic pressure. Sci Rep. 2016 Sep 22;6:33886. [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

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

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO / Ethanol	1 mM	2.4835 mL	12.4177 mL	24.8355 mL	62.0887 mL
	5 mM	0.4967 mL	2.4835 mL	4.9671 mL	12.4177 mL
	10 mM	0.2484 mL	1.2418 mL	2.4835 mL	6.2089 mL
	15 mM	0.1656 mL	0.8278 mL	1.6557 mL	4.1392 mL
	20 mM	0.1242 mL	0.6209 mL	1.2418 mL	3.1044 mL
	25 mM	0.0993 mL	0.4967 mL	0.9934 mL	2.4835 mL
	30 mM	0.0828 mL	0.4139 mL	0.8278 mL	2.0696 mL

Keywords

24(S)-Hydroxycholesterol

1 Cited Publications

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24(S)-Hydroxycholesterol

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Publications Citing Use of MedChemExpress (MCE) 24(S)-Hydroxycholesterol

All iGluR Isoforms

All Endogenous Metabolite Isoforms

Biological Activity

Chemical Information

Publications (1)

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

24(S)-Hydroxycholesterol Related Classifications

HY-16940 Related Classifications