Rhamnetin

Product Name: Rhamnetin
CAS No.: 90-19-7
Chemical Name: Rhamnetin
Synonyms: 2-(3,4-Dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-4H-chromen-4-one;Nsc19802;c.i.75690;LY 805921;RHAMNETIN;Rhamnetin-RM;RHAMNETIN(SH);Rhamnetin 99%;B-RHAMNOCITRIN;β-Rhamnocitrin
CBNumber: CB0730880
Molecular Formula: C16H12O7
Formula Weight: 316.26
MOL File: 90-19-7.mol

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Rhamnetin Property

Melting point:: 293-296°C (dec.)
Boiling point:: 375.7°C (rough estimate)
Density: 1.3347 (rough estimate)
refractive index: 1.4790 (estimate)
storage temp.: 2-8°C
solubility: DMSO (Slightly), Methanol (Slightly, Heated)
pka: 6.15±0.40(Predicted)
form: Solid
color: Light Yellow to Dark Yellow
BRN: 47741
Stability:: Hygroscopic
Major Application: food and beverages
InChI: 1S/C16H12O7/c1-22-8-5-11(19)13-12(6-8)23-16(15(21)14(13)20)7-2-3-9(17)10(18)4-7/h2-6,17-19,21H,1H3
InChIKey: JGUZGNYPMHHYRK-UHFFFAOYSA-N
SMILES: COc1cc(O)c2C(=O)C(O)=C(Oc2c1)c3ccc(O)c(O)c3
LogP: 2.580 (est)
CAS DataBase Reference: 90-19-7(CAS DataBase Reference)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36/37
WGK Germany: 3
RTECS: LK8748000
F: 3-10
Storage Class: 11 - Combustible Solids

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 17799
Product name: Rhamnetin
Purity: analytical standard
Packaging: 5mg
Price: $426
Updated: 2025/07/31

Sigma-Aldrich

Product number: 17799
Product name: Rhamnetin
Purity: analytical standard
Packaging: 1mg
Price: $84.5
Updated: 2022/05/15

Cayman Chemical

Product number: 20302
Product name: Rhamnetin
Purity: ≥98%
Packaging: 500μg
Price: $37
Updated: 2024/03/01

Cayman Chemical

Product number: 20302
Product name: Rhamnetin
Purity: ≥98%
Packaging: 1mg
Price: $68
Updated: 2024/03/01

Cayman Chemical

Product number: 20302
Product name: Rhamnetin
Purity: ≥98%
Packaging: 5mg
Price: $184
Updated: 2024/03/01

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Rhamnetin Chemical Properties,Usage,Production

Uses

O-Methylated metabolite of the flavanoid Quercertin (Q509500) with antioxidant activity.

Definition

ChEBI: A monomethoxyflavone that is quercetin methylated at position 7.

Purification Methods

Crystallise rhamnetin from EtOH (m 292-293o), aqueous EtOH (m 294-296o) or MeOH (m 290-294o). or Me2CO/MeOH. [Kuhn & Low Chem Ber 77 211 1944, Jurd J Am Chem Soc 80 5531 1958.] The tetra-acetate has m 189-190o (from Me2CO/MeOH). [Beilstein 18 H 245, 18 II 237, 18 III/IV 3474.]

Rhamnetin Preparation Products And Raw materials

Raw materials

Preparation Products

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Rhamnetin Suppliers

Canada 1 China 125 France 2 Germany 3 India 1 Japan 1 Switzerland 1 United Kingdom 7 United States 16 USA 1 Global 158

J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006356688 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

Nanjing Chemlin Chemical Co., Ltd

Tel: 025-83697070 13913916777;
Fax: +86-25-83453306
Email: info@chemlin.com.cn
Country: China
ProdList: 15778
Advantage: 64

Chemsky (shanghai) International Co.,Ltd

Tel: 021-50135380
Email: shchemsky@sina.com
Country: China
ProdList: 15402
Advantage: 60

BioBioPha Co., Ltd.

Tel: 0871-65217109 13211707573;
Fax: 0871-65215563
Email: y.liu@mail.biobiopha.com
Country: China
ProdList: 5645
Advantage: 65

Chengdu Biopurify Phytochemicals Ltd.

Tel: +86-028-82633397 18982077548
Fax: +86-28-82633165
Email: cwb1@biopurify.cn
Country: China
ProdList: 2376
Advantage: 60

Shanghai Winherb Medical Technology Co., Ltd.

Tel: 021-38218169 13341702378
Fax: QQ：190129269
Email: winherb@126.com
Country: China
ProdList: 1245
Advantage: 58

Beijing HuaMeiHuLiBiological Chemical

Tel: 010-56205725
Fax: 010-65763397
Email: waley188@sohu.com
Country: China
ProdList: 12335
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Shanghai T&W Pharmaceutical Co., Ltd.

Tel: +86 21 61551611
Fax: +86 21 50676805
Country: China
ProdList: 9891
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Shanghai Tauto Biotech Co., Ltd.

Tel: 021-51320588
Fax: 0086-21-51320502
Email: tauto@tautobiotech.com
Country: China
ProdList: 3988
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View Lastest Price from Rhamnetin manufacturers

Hefei Lbao Physical & Chemical Science Co.,Ltd

Product: 2-(3,4-Dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-4H-chromen-4-one 90-19-7
Price: US $0.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: Customise
Release date: 2025-10-03

Zhuozhou Wenxi import and Export Co., Ltd

Product: Rhamnetin 90-19-7
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-08-11

Career Henan Chemical Co

Product: Rhamnetin 90-19-7
Price: US $1.00/kg
Min. Order: 1g
Purity: 99%
Supply Ability: 100KG
Release date: 2018-12-24

90-19-7, RhamnetinRelated Search:

4-Methoxybenzoic acid Rhamnosylvitexin Anisole α-L-Rhamnopyranose monohydrate (Trifluoromethoxy)benzene 4-(Trifluoromethoxy)aniline 4-Methoxybenzylchloride 4-Methoxyphenol p-Anisidine p-Anisaldehyde Isorhamnetin ARTEMETIN QUERCETIN-3,5,7,3',4'-PENTAMETHYL ETHER 3,7,3',4'-TETRAMETHYLGOSSYPETIN CASTICIN QUERCETIN-3,7,3',4'-TETRAMETHYL ETHER Lycorine hydrochloride 7-Methoxyflavone

7-methoxyquercetin

7-o-methylquercetin

beta-rhamnocitrin

c.i.75690

3,3,4,5-TETRAHYDROXY-7-METHOXYFLAVONE TECH GRADE

RHAMNETIN WITH HPLC

2-(3,4-Dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-4H-1-benzopyran-4-one

7-Methoxyquercetin<br />

4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-

Flavone, 3,3',4',5-tetrahydroxy-7-methoxy-

Nsc19802

RHAMNETIN(SH)

7METHOXY3345TETRAHYDROXYFLAVONE

3,5,3'',4''-TETRAHYDROXY-7-METHOXYFLAVONE WITH HPLC

QUERCETIN-7-METHYL ETHER hplc

Rhamnetin 99%

2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-y-Methoxy-4H-1-benzopyran-4-one

LY 805921

B-RHAMNOCITRIN

3,3',4',5'-TETRAHYDROXY-7-METHOXYFLAVONE

3,3',4',5-TETRAHYDROXY-7-METHOXYFLAVONE

3,3,4,5-TETRAHYDROXY-7-METHOXYFLAVONE

7-METHYLQUERCETIN

QUERCETIN-7-METHYL ETHER

RHAMNETIN

2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-4h-1-benzopyran-4-on

3,3’,4’,5-tetrahydroxy-7-methoxy-flavon

7-methoxy-3,3’,4’,5-tetrahydroxy-flavon

3,5,3',4'-TETRAHYDROXY-7-METHOXYFLAVONE

Rhamnetin - Tech grade ca 50%

Rutoside Trihydrate Impurity 10(Rhamnetin)

2-(3,4-Dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-4H-chromen-4-one

inhibit,Phospholipase,Rhamnetin,Inhibitor

3,3',4',5-Tetrahydroxy 7-methoxyflavone

β-Rhamnocitrin

Rhamnetin-RM

Rhamnetin, 10 mM in DMSO

90-19-7

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