Quercetin 3,4'-dimethyl ether

Modify Date: 2026-07-06 19:13:00

Quercetin 3,4'-dimethyl ether Structure
Quercetin 3,4'-dimethyl ether structure
Common Name Quercetin 3,4'-dimethyl ether
CAS Number 33429-83-3 Molecular Weight 330.29
Density 1.6±0.1 g/cm3 Boiling Point 607.0±55.0 °C at 760 mmHg
Molecular Formula C17H14O7 Melting Point 229-230ºC
MSDS N/A Flash Point 227.3±25.0 °C

 Use of Quercetin 3,4'-dimethyl ether


Quercetin 3,4′-dimethyl ether (3,4′-Dimethylquercetin) is a dimethoxyflavone can be isolated from Combretum quadrangulare. Quercetin 3,4′-dimethyl ether overcomes TRAIL resistance by enhancing DR5 expression and has anti-tumor activity[1].

 Names

Name 5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-3-methoxychromen-4-one
Synonym More Synonyms

 Quercetin 3,4'-dimethyl ether Biological Activity

Description Quercetin 3,4′-dimethyl ether (3,4′-Dimethylquercetin) is a dimethoxyflavone can be isolated from Combretum quadrangulare. Quercetin 3,4′-dimethyl ether overcomes TRAIL resistance by enhancing DR5 expression and has anti-tumor activity[1].
Related Catalog
References

[1]. Toume K, et al. Cycloartane triterpenes isolated from Combretum quadrangulare in a screening program for death-receptor expression enhancing activity. J Nat Prod. 2011 Feb 25;74(2):249-55.  

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Boiling Point 607.0±55.0 °C at 760 mmHg
Melting Point 229-230ºC
Molecular Formula C17H14O7
Molecular Weight 330.29
Flash Point 227.3±25.0 °C
Exact Mass 330.073944
PSA 109.36000
LogP 1.85
Vapour Pressure 0.0±1.8 mmHg at 25°C
Index of Refraction 1.701
InChIKey ZSPZNFOLWQEVQJ-UHFFFAOYSA-N
SMILES COc1ccc(-c2oc3cc(O)cc(O)c3c(=O)c2OC)cc1O

 Safety Information

HS Code 2914509090

 Customs

HS Code 2914509090
Summary HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

 Quercetin 3,4'-dimethyl etherBioassay

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Name: Inhibition of recombinant human PTP-sigma (residues 1367 to 1948) using para-nitrophe...
Source: ChEMBL
Target: Receptor-type tyrosine-protein phosphatase S
External Id: CHEMBL3744703
Name: Cytotoxicity against TRAIL-resistant human AGS cells assessed as cell viability at 12...
Source: ChEMBL
Target: AGS
External Id: CHEMBL1693930
Name: Cytotoxicity against TRAIL-resistant human AGS cells assessed as cell viability at 17...
Source: ChEMBL
Target: AGS
External Id: CHEMBL1693931
Name: Anti-inflammatory activity in mouse BV-2 cells assessed as inhibition of LPS-induced ...
Source: ChEMBL
Target: BV-2
External Id: CHEMBL5543296
Name: Inhibition of recombinant human PTP-sigma (residues 1367 to 1948) using para-nitrophe...
Source: ChEMBL
Target: Receptor-type tyrosine-protein phosphatase S
External Id: CHEMBL3744704
Name: In vitro cytotoxic potency against NCI-60 human tumor cell line
Source: ChEMBL
Target: Panel NCI-60 (60 carcinoma cell lines)
External Id: CHEMBL749609
Name: In vivo antitumor activity against mouse P388 cells
Source: ChEMBL
Target: P388
External Id: CHEMBL1002694
Name: Increase in DR5 promoter activity in SacI gene expressing human DLD1 cells at 17.5 to...
Source: ChEMBL
Target: Tumor necrosis factor receptor superfamily member 10B
External Id: CHEMBL1693927
Name: Cytotoxicity against human KB cells
Source: ChEMBL
Target: KB
External Id: CHEMBL1002689
Name: HIV Cellular Data
Source: NIAID
Target: N/A
External Id: HIV Cellular Data
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 Synonyms

5,7,3'-Trihydroxy-3,4'-dimethoxyflavone
3',5,7-Trihydroxy-3',4'-dimethoxyflavone
Quercetin 3,4'-dimethyl Ether
5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-3-methoxy-4H-chromen-4-one
3',5,7-Trihydroxy-3,4'-dimethoxyflavone
quercetin-3,4'-dimethyl ether
3,4'-O-dimethylquercetin
MFCD00016927
5,7-Dihydroxy-2-(3-hydroxy-4-methoxy-phenyl)-3-methoxy-1-benzopyran-4-one
3',5,7-trihydroxy-3,4'-dimethoxy flavone, Quercetin 3,4'-dimethyl Ether
5,5,3'-trihydroxy-3,4'-dimethoxyflavone
3,4'-dimethoxy-5,7-3'-trihydroxyflavone
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