ChemicalBook > CAS DataBase List > 5,7-Dihydrox -4'-methoxyisoflavone

5,7-Dihydrox -4'-methoxyisoflavone

Product Name
5,7-Dihydrox -4'-methoxyisoflavone
CAS No.
491-80-5
Chemical Name
5,7-Dihydrox -4'-methoxyisoflavone
Synonyms
BIOCHANIN A;BIOCHANIN;BIOCHANIN A (AHP);OlMelin;Pratensol;Bilchanin A;Biochani,Olmelin;5,7-dihydroxy-3-(4-methoxyphenyl)chromen-4-one;5,7-Dihydroxy-3-(4-methoxyphenyl)-4H-chromen-4-one;Biochani
CBNumber
CB8474490
Molecular Formula
C16H12O5
Formula Weight
284.26
MOL File
491-80-5.mol
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5,7-Dihydrox -4'-methoxyisoflavone Property

Melting point:
210-213 °C(lit.)
Boiling point:
340-355 °C(Press: 0.5 Torr)
Density 
1.420±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
solubility 
acetone: 10 mg/mL, clear, brown
form 
Powder
pka
6.50±0.20(Predicted)
color 
Off-White to Beige
Water Solubility 
Soluble in water (<1 mg/ml at 25°C), chloroform, methanol, DMSO (57 mg/ml at 25°C), and ethanol (9 mg/ml at 25°C).
λmax
263nm(EtOH)(lit.)
BRN 
278107
InChI
InChI=1S/C16H12O5/c1-20-11-4-2-9(3-5-11)12-8-21-14-7-10(17)6-13(18)15(14)16(12)19/h2-8,17-18H,1H3
InChIKey
WUADCCWRTIWANL-UHFFFAOYSA-N
SMILES
C1OC2=CC(O)=CC(O)=C2C(=O)C=1C1=CC=C(OC)C=C1
LogP
3.341 (est)
CAS DataBase Reference
491-80-5(CAS DataBase Reference)
EPA Substance Registry System
4H-1-Benzopyran-4-one, 5,7-dihydroxy-3-(4-methoxyphenyl)- (491-80-5)
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Safety

Safety Statements 
22-24/25
WGK Germany 
3
RTECS 
DJ3002500
10
TSCA 
Yes
HS Code 
29329990
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHL80012
Product name
Biochanin A
Purity
phyproof? Reference Substance
Packaging
25MG
Price
$278
Updated
2025/07/31
Sigma-Aldrich
Product number
92142
Product name
Biochanin A
Purity
analytical standard
Packaging
50mg
Price
$189
Updated
2025/07/31
Sigma-Aldrich
Product number
1071381
Product name
Biochanin A
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
20mg
Price
$343
Updated
2025/07/31
TCI Chemical
Product number
B4098
Product name
Biochanin A
Purity
>98.0%(HPLC)(T)
Packaging
1g
Price
$195
Updated
2025/07/31
TCI Chemical
Product number
B4098
Product name
Biochanin A
Purity
>98.0%(HPLC)(T)
Packaging
5g
Price
$655
Updated
2025/07/31
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5,7-Dihydrox -4'-methoxyisoflavone Chemical Properties,Usage,Production

Description

Biochanin A is a natural isoflavone with diverse biological actions, most notably as a phytoestrogen. It can affect hormone levels by inhibiting 5α-reductase and 17β-hydroxysteroid dehydrogenase or altering aromatase (CYP19A1) activity. Also known as 4’-methyl genistein, biochanin A can be metabolized in vivo to genistein , another phytoestrogen with diverse effects. Biochanin A also intersects with signaling through peroxisome proliferator-activated receptors (PPARs), as it activates PPARγ (EC50 = 19 μM) and has also been shown to activate a PPARα promoter. Moreover, it increases the expression of the PPARγ coactivator PGC-1α, promoting mitochondrial biogenesis. Biochanin A also inhibits fatty acid amide hydrolase (IC50 = 2.4 μM) and acts as an agonist of the aryl hydrocarbon receptor (EC50 = 0.25 μM).

Chemical Properties

Off-White Solid

Uses

phytoestrogen

Uses

It has putative benefits in dietary cancer prophylaxis. It has also been found to inhibit fatty acid amide hydrolase and to act as agonist of PPARgamma, nuclear receptor that is current pharmacological target for the treatment of diabetes type 2. It acts as an antineoplastic agent. It is a selective agonist at ER-β estrogen receptors, and may have chemopreventive efficacy against breast cancer. In line with its low activity at ER-α estrogen receptors, it is essentially devoid of uterotrophic activity. Biochanin A is also a ligand for the aryl hydrocarbon receptor (AhR). It reduces arterial resistance and enhances microcirculation perhaps via effects on potassium and/or calcium ion channels. Induction of sulfotransferases for xenobiotic detoxification has been proposed as a mechanism of its cancer preventive effects. It is a nitric oxide synthase inhibitor and apoptosis inducer

Uses

An isoflavone with anticancer proliferation, differentiation and chemopreventitive properties. Inhibits metabolic activation of benzo[a]pyrene

Definition

ChEBI: Biochanin A is a member of the class of 7-hydroxyisoflavones that is 7-hydroxyisoflavone which is substituted by an additional hydroxy group at position 5 and a methoxy group at position 4'. A phytoestrogen, it has putative benefits in dietary cancer prophylaxis. It has a role as a phytoestrogen, a plant metabolite, an EC 3.5.1.99 (fatty acid amide hydrolase) inhibitor, a tyrosine kinase inhibitor and an antineoplastic agent. It is a member of 7-hydroxyisoflavones and a member of 4'-methoxyisoflavones. It is a conjugate acid of a biochanin A(1-).

General Description

Biochanin A (BCA) is synthesized in vitro from phloroglucinol. A series of steps involving Friedel?Crafts reaction results in an intermediate product 1-(2,4,6-trihydroxyphenyl)-2-(4 methoxyphenyl) ethanone, which post cyclization leads to BCA. It is catabolized to isoflavone genistein post ingestion.

Biochem/physiol Actions

Biochanin A is an isoflavone phytoestrogen found in red clover (Trifolium pratense) that is a selective agonist at ER-β estrogen receptors, and may have chemopreventive efficacy against breast cancer. In line with its low activity at ER-α estrogen receptors, it is essentially devoid of uterotrophic activity. Biochanin A is also a ligand for the aryl hydrocarbon receptor (AhR). It reduces arterial resistance and enhances microcirculation perhaps via effects on potassium and/or calcium ion channels. Induction of sulfotransferases for xenobiotic detoxification has been proposed as a mechanism of its cancer preventive effects.

Synthesis

15485-66-2

68-12-2

491-80-5

The general procedure for the synthesis of 5,7-dihydroxy-3-(4-methoxyphenyl)-4H-benzopyran-4-one from 2-(4-methoxyphenyl)-1-(2,4,6-trihydroxyphenyl)ethanone and N,N-dimethylformamide was carried out as follows: ethyl ether boron trifluoride (3 mL, 24 mmol) was added dropwise to 3 mL anhydrous N,N-dimethylformamide containing 8 mmol of 2-(4-methoxyphenyl)-1-(2,4,6-trihydroxyphenyl)ethanone (2,4,6-trihydroxyphenyl)acetonide, under the conditions of cooling in ice bath and vigorous stirring. 2-(4-methoxyphenyl)-1-(2,4,6-trihydroxyphenyl)ethanone to 3 mL of anhydrous N,N-dimethylformamide. After stopping the cooling, trichlorophosphorus (0.9 mL, 9.6 mmol) was added slowly and dropwise. After all components were mixed well, the reaction mixture was stirred at 60-70°C for 2 hours. After completion of the reaction, the mixture was poured into acidified water and the precipitate was filtered out. The crude product was purified by column chromatography using hexane and ethyl acetate (8:2, v/v) as eluents to afford the target compound 5,7-dihydroxy-3-(4-methoxyphenyl)-4H-benzopyran-4-one (a) in 61% yield with a melting point of 212-214 °C. Elemental analysis (C16H12O5) Calculated values: C, 67.60; H, 4.25; O, 28.14; measured values: C, 67.57; H, 4.27; O, 28.15.1H NMR (DMSO-d6, 400 MHz): δ 12.94 (s, 1H, 5-OH), 10.92 (s, 1H, 7-OH), 8.38 ( s, 1H, 2-H), 7.50 (d, J = 8.0 Hz, 2H, Ar-H), 7.0 (d, J = 8.0 Hz, 2H, Ar-H), 6.40 (s, 1H, Ar-H), 5.77 (s, 1H, Ar-H), 3.79 (s, 3H, OCH3).13C NMR (DMSO-d6, 100 MHz): δ 180.0, 164.3, 161.9, 159.17, 157.5, 154.2, 130.1, 122.9, 121.9, 113.7, 104.4, 99.0, 93.6, 55.1. ESI-MS: m/z 285 [M + H]+. FT-IR (KBr, cm-1): 3312 (O-H), 3007 (C-H aromatic), 3007 (C-H aromatic), 3007 (C-H aromatic). 3007 (C-H aromatic), 2950 (C-H aliphatic), 1642 (C=O).

References

[1] Synthetic Communications, 2000, vol. 30, # 3, p. 469 - 484
[2] Chemistry and Biodiversity, 2015, vol. 12, # 6, p. 963 - 979
[3] Chemistry of Natural Compounds, 2013, vol. 49, # 2, p. 235 - 241
[4] Khim. Prir. Soedin., 2013, # 2, p. 203 - 208,6
[5] Journal of Chemistry, 2018, vol. 2018,

5,7-Dihydrox -4'-methoxyisoflavone Preparation Products And Raw materials

Raw materials

Preparation Products

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5,7-Dihydrox -4'-methoxyisoflavone Suppliers

Hangzhou FST Pharmaceutical Co., Ltd
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0571-88938669 18667135863
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China
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Shanxi Yuning Biotechnology Co., Ltd.
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J & K SCIENTIFIC LTD.
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Alfa Aesar
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TCI (Shanghai) Development Co., Ltd.
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Beijing HwrkChemical Technology Co., Ltd
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View Lastest Price from 5,7-Dihydrox -4'-methoxyisoflavone manufacturers

Jinan Ruitong Biotech Co., Ltd.
Product
5,7-Dihydrox -4'-methoxyisoflavone 491-80-5
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
1
Release date
2025-09-08
Shaanxi Xianhe Biotech Co., Ltd
Product
5,7-Dihydrox -4'-methoxyisoflavone 491-80-5
Price
US $0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
1000kg
Release date
2025-04-29
Henan Aochuang Chemical Co.,Ltd.
Product
5,7-Dihydrox -4'-methoxyisoflavone 491-80-5
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
1Ton
Release date
2022-09-29

491-80-5, 5,7-Dihydrox -4'-methoxyisoflavoneRelated Search:


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