Cat. No.: HY-N1860

3-O-Methylquercetin

Customer Review

Based on 1 Customer Validation

3-O-Methylquercetin is an inhibitor of cAMP and CGMP-phosphodiesterase (PDE) with IC₅₀ at 13.8 μM and 14.3 μM, respectively. 3-O-Methylquercetin is an inhibitor of β-secretase with an IC₅₀ of 6.5 μM. 3-O-Methylquercetin has a neuroprotective effect against neuronal death caused by oxidative damage. 3-O-Methylquercetin has strong antiviral activity against poliovirus, coxsackie virus and human rhinovirus. 3-O-Methylquercetin has anti-inflammatory and trachea-relaxing effects and can be used in the study of inflammatory diseases and asthma.

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

Purity: 99.98%
CAS No.: 1486-70-0
Formula: C₁₆H₁₂O₇
Molecular Weight:316.26

Storage:

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

3-O-Methylquercetin Chemical Structure

CAS No.: 1486-70-0

Size

Price

Stock

Quantity

Amount: USD 0.00

* Please select Quantity before adding items.

Top Publications Citing

Use of MCE Products

Fluorescent Dye

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

Biological Activity
- Description
- Cellular Effect
- In Vitro
- In Vivo
Chemical Information
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

All Phosphodiesterase (PDE) Isoforms :

All NO Synthase Isoforms :

Cellular Effect

Cell Line	Type	Value	Description	References
A549	IC₅₀	8.14 μM Compound: 2a	Anticancer activity against human A549 cells by HTS assay Anticancer activity against human A549 cells by HTS assay	[PMID: 25139569]
BV-2	IC₅₀	3.8 μM Compound: 104	Anti-inflammatory activity in mouse BV-2 cells assessed as inhibition of LPS-induced NO production preincubated with compound for 1 hrs followed by LPS stimulation and measured after 24 hrs by Griess reagent based assay Anti-inflammatory activity in mouse BV-2 cells assessed as inhibition of LPS-induced NO production preincubated with compound for 1 hrs followed by LPS stimulation and measured after 24 hrs by Griess reagent based assay	[PMID: 37683361]
BV-2	IC₅₀	3.8 μM Compound: 3, 3-O-methylquercetin	Inhibition of LPS-induced NO production in mouse BV2 cells Inhibition of LPS-induced NO production in mouse BV2 cells	[PMID: 18178435]
Calu-1	IC₅₀	>50 μM Compound: 2a	Anticancer activity against human Calu1 cells by HTS assay Anticancer activity against human Calu1 cells by HTS assay	[PMID: 25139569]
HeLa	IC₅₀	6.09 μM Compound: 2a	Anticancer activity against human HeLa cells by HTS assay Anticancer activity against human HeLa cells by HTS assay	[PMID: 25139569]
HepG2 2.2.15	CC₅₀	2.1 μM Compound: Table 3, R9C1	Cytotoxicity against human HepG2(2.2.15) cells after 8 days by MTT assay Cytotoxicity against human HepG2(2.2.15) cells after 8 days by MTT assay	[PMID: 21401115]
HOP-62	IC₅₀	35.54 μM Compound: 2a	Anticancer activity against human HOP62 cells by HTS assay Anticancer activity against human HOP62 cells by HTS assay	[PMID: 25139569]
KB	ED₅₀	17 μg/mL Compound: NSC-154016	Cytotoxicity against human KB cells Cytotoxicity against human KB cells	[PMID: 469554]
LOX IMVI	IC₅₀	>50 μM Compound: 2a	Anticancer activity against human LOXIMVI cells by HTS assay Anticancer activity against human LOXIMVI cells by HTS assay	[PMID: 25139569]
M14	IC₅₀	>50 μM Compound: 2a	Anticancer activity against human M14 cells by HTS assay Anticancer activity against human M14 cells by HTS assay	[PMID: 25139569]
Monocyte	IC₅₀	47 μM Compound: 3-O-methyl quercetin	Inhibition of TNFalpha expression in LPS-stimulated human monocytes treated 30 mins before LPS challenge measured after 14 hrs by ELISA Inhibition of TNFalpha expression in LPS-stimulated human monocytes treated 30 mins before LPS challenge measured after 14 hrs by ELISA	[PMID: 10096854]
NCI-H1299	IC₅₀	46.81 μM Compound: 2a	Anticancer activity against human H1299 cells by HTS assay Anticancer activity against human H1299 cells by HTS assay	[PMID: 25139569]
NCI-H157	IC₅₀	18.67 μM Compound: 2a	Anticancer activity against human NCI-H157 cells by HTS assay Anticancer activity against human NCI-H157 cells by HTS assay	[PMID: 25139569]
NCI-H1792	IC₅₀	24.09 μM Compound: 2a	Anticancer activity against human NCI-H1792 cells by HTS assay Anticancer activity against human NCI-H1792 cells by HTS assay	[PMID: 25139569]
NCI-H1944	IC₅₀	23.64 μM Compound: 2a	Anticancer activity against human NCI-H1944 cells by HTS assay Anticancer activity against human NCI-H1944 cells by HTS assay	[PMID: 25139569]
NCI-H460	IC₅₀	9.91 μM Compound: 2a	Anticancer activity against human H460 cells by HTS assay Anticancer activity against human H460 cells by HTS assay	[PMID: 25139569]
NCI-H522	IC₅₀	>50 μM Compound: 2a	Anticancer activity against human NCI-H522 cells by HTS assay Anticancer activity against human NCI-H522 cells by HTS assay	[PMID: 25139569]
RAW264.7	IC₅₀	3.5 μg/mL Compound: 204	Antiinflammatory activity in mouse RAW264.7 cells assessed as inhibition of LPS-induced nitric oxide production after 24 hrs by Griess reagent based assay Antiinflammatory activity in mouse RAW264.7 cells assessed as inhibition of LPS-induced nitric oxide production after 24 hrs by Griess reagent based assay	[PMID: 31255927]

In Vitro

3-O-Methylquercetin (1-10 μM; 24 h) inhibits NO production (IC₅₀: 4.23μM) and the expression of iNOS protein and mRNA in a concentration-dependent manner in RAW 264.7 cells treated with LPS (HY-D1056)^[1].
3-O-Methylquercetin (1-30 μM; 15 min) can relax the trachea of guinea pig^[2].
3-o-methylquercetin (1-100 μM；20-24 h) improves the survival rate of rat cortical cells treated with H₂O₂^[3].

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

Western Blot Analysis^[1]

Cell Line:

LPS (HY-D1056) treated RAW 264.7
Concentration:

1, 3 and 10 μM
Incubation Time:

24 h
Result:

Reduced the level of iNOS in a dose-dependent manner.

In Vivo

3-O-Methylquercetin (3-30 μmol/kg ≈ 0.95-9.5 mg/kg; Intraperitoneal injection; 3 times) shows improvement in airway hyperresponsiveness induced by oobumin (HY-W250978)^[4].

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

Animal Model:

Ovalbumin (HY-W250978) treated female BALB/c mice aged 8-12 weeks old^[4]
Dosage:

3 and 30 μmol/kg ≈ 0.95 and 9.5 mg/kg
Administration:

Intraperitoneal injection (i.p.); 3 times
Result:

Significantly suppressed the enhanced pause value induced by aerosolized methacholine in sensitized mice after secondary allergen challenge.
Significantly suppressed total inflammatory cells, macrophages, neutrophils, and eosinophils, but not lymphocytes.
Significantly decreased the secretion of TNF-α, and at the highest dose even decreased the secretions of IL-4, IL-5, and TNF-α.

Chemical Information

CAS No. 1486-70-0
Appearance Solid
Molecular Weight 316.26
Formula C₁₆H₁₂O₇
Color Light yellow to yellow
SMILES

O=C1C(OC)=C(C2=CC=C(O)C(O)=C2)OC3=CC(O)=CC(O)=C13
Structure Classification
- Flavonoids
- Flavones
Initial Source
- Plants
- Rhamnaceae
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

Solvent & Solubility

In Vitro:

DMSO : 50 mg/mL (158.10 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

3.1620 mL

15.8098 mL

31.6196 mL

5 mM

0.6324 mL

3.1620 mL

6.3239 mL

10 mM

0.3162 mL

1.5810 mL

3.1620 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

Volume Volume

Molecular Weight Molecular Weight

Dilution Calculator

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

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 (1.96 mM); Clear solution; Need ultrasonic

This protocol yields a clear solution of 0.62 mg/mL.

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: 0.62 mg/mL (1.96 mM); Clear solution; Need ultrasonic

This protocol yields a clear solution of 0.62 mg/mL.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (6.2 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: 0.62 mg/mL (1.96 mM); Clear solution; Need ultrasonic

This protocol yields a clear solution of 0.62 mg/mL. 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 (6.2 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

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (278 KB)
SDS (480 KB)
- English - EN (480 KB)
- Français - FR (480 KB)
- Deutsch - DE (480 KB)
- Norwegian - NO (480 KB)
- Español - ES (480 KB)
- Swedish - SV (480 KB)
- Italian - IT (480 KB)
- Korean - KR (480 KB)
- Portuguese - PT (480 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]. Jiang JS, et al. Mechanisms of suppression of nitric oxide production by 3-O-methylquercetin in RAW 264.7 cells. J Ethnopharmacol. 2006 Jan 16;103(2):281-7. [Content Brief]

[2]. Ko WC, et al. Mechanisms of relaxant action of 3-O-methylquercetin in isolated guinea pig trachea. Planta Med. 2002 Jan;68(1):30-5. [Content Brief]

[3]. Kim SH, et al. Glucose-containing flavones--their synthesis and antioxidant and neuroprotective activities. Bioorg Med Chem Lett. 2009 Nov 1;19(21):6009-13. [Content Brief]

[4]. Ko WC, et al. Suppressive effects of 3-O-methylquercetin on ovalbumin-induced airway hyperresponsiveness. Planta Med. 2004 Dec;70(12):1123-7. [Content Brief]

[5]. Mugabowindekwe, et al. Universiteit Antwerpen (Belgium) ProQuest Dissertations & Theses, 2004. 3141550.

[6]. Zhumanova K, et al. Inhibitory mechanism of O-methylated quercetins, highly potent β-secretase inhibitors isolated from Caragana balchaschensis (Kom.) Pojark. J Ethnopharmacol. 2021 May 23;272:113935. [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	1 mM	3.1620 mL	15.8098 mL	31.6196 mL	79.0489 mL
	5 mM	0.6324 mL	3.1620 mL	6.3239 mL	15.8098 mL
	10 mM	0.3162 mL	1.5810 mL	3.1620 mL	7.9049 mL
	15 mM	0.2108 mL	1.0540 mL	2.1080 mL	5.2699 mL
	20 mM	0.1581 mL	0.7905 mL	1.5810 mL	3.9524 mL
	25 mM	0.1265 mL	0.6324 mL	1.2648 mL	3.1620 mL
	30 mM	0.1054 mL	0.5270 mL	1.0540 mL	2.6350 mL
	40 mM	0.0790 mL	0.3952 mL	0.7905 mL	1.9762 mL
	50 mM	0.0632 mL	0.3162 mL	0.6324 mL	1.5810 mL
	60 mM	0.0527 mL	0.2635 mL	0.5270 mL	1.3175 mL
	80 mM	0.0395 mL	0.1976 mL	0.3952 mL	0.9881 mL
	100 mM	0.0316 mL	0.1581 mL	0.3162 mL	0.7905 mL

Keywords

Product Name:
Cat. No.:
Quantity:
MCE Japan Authorized Agent:

Product Name:
CAS No.:
Species:
Purity:
Quantity:

3-O-Methylquercetin

Anti-Infection Compound Library

Immunology/Inflammation Compound Library

Metabolism/Protease Compound Library

Natural Product Library

Antiviral Compound Library

Anti-Aging Compound Library

Medicine Food Homology Compound Library

Traditional Chinese Medicine Active Compound Library

Flavonoids Library

Anti-Alzheimer's Disease Compound Library

Neuroprotective Compound Library

Neurodegenerative Disease-related Compound Library

Angiogenesis-Related Compound Library

Food-Sourced Compound Library

Anti-Colorectal Cancer Compound Library

Antiviral Traditional Chinese Medicine Active Compound Library

Anti-inflammatory Traditional Chinese Medicine Active Compound Library

Plant-Sourced Natural Product Library

Mitochondrial Protection Compound Library

Metabolic Enzyme Compound Library

Membrane Protein-targeted Compound Library

Multi-Target Compound Library

Bioactive Compound Library Max

Natural Product Library Plus

Natural Product and Natural Product-Like Compound Library

Bioactive Compound Library

Miao Ethnicity Medicine Compound Library

Tibetan Medicine Compound Library

Heat-Clearing and Detoxification Traditional Chinese Medicine Compound Library

RO5 Drug-like Natural Product Library

High-Throughput Bioactive Compound Library

High-Throughput Natural Product Library

Ancient Chinese Classical Formulas Traditional Chinese Medicine Active Compound Library

Diarrhea-Related Traditional Chinese Medicine Active Compound Library

Mongolian Medicine Compound Library

Mass Spectrometry Natural Product Library

All Phosphodiesterase (PDE) Isoforms

All NO Synthase Isoforms

Biological Activity

Chemical Information

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

3-O-Methylquercetin Related Classifications

HY-N1860 Related Classifications