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5-Hydroxy-2-(4-methoxyphenyl)-3,7,8-trimethoxy-4H-1-benzopyran-4-one is a complex organic compound with the molecular formula C18H18O7. It is a type of flavonoid, which are naturally occurring compounds found in plants, known for their antioxidant properties. This specific compound is characterized by a benzopyran ring structure with multiple hydroxyl and methoxy groups. It is often associated with the presence in certain plants and may have potential applications in the pharmaceutical or dietary supplement industries due to its antioxidant activity. However, it is important to note that the compound's specific biological activities, safety, and efficacy in humans are not detailed in this summary and would require further scientific research and clinical studies.

521-44-8

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521-44-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 521-44-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 521-44:
(5*5)+(4*2)+(3*1)+(2*4)+(1*4)=48
48 % 10 = 8
So 521-44-8 is a valid CAS Registry Number.

521-44-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name flindulatin

1.2 Other means of identification

Product number -
Other names 5-Hydroxy-3,7,8-trimethoxy-2-(4-methoxy-phenyl)-chromen-4-one

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:521-44-8 SDS

521-44-8Downstream Products

521-44-8Relevant academic research and scientific papers

Studies of the Selective O-Alkylation and Dealkylation of Flavonoids. 10. Selective Demethylation of 7-Hydroxy-3,5,8-trimethoxyflavones with Anhydrous Aluminum Halide in Acetonitrile or Ether

Horie, Tokunaru,Tsukayama, Masao,Kawamura, Yasuhiko,Seno, Masamichi

, p. 4702 - 4709 (2007/10/02)

Demethylation of five 7-hydroxy-3,5,8-trimethoxyflavones and their acetates with anhydrous aluminum halides in acetonitrile or ether was studied and the following results were found. (1) The demethylation was apparently influenced by both solvents and afforded 5,7-dihydroxy-3,8-dimethoxyflavones in acetonitrile and 3,7-dihydroxy-5,8-dimethoxyflavones in ether as main products. (2) The demethylation with 5percent w/v anhydrous aluminum bromide in acetonitrile procedeed quantitatively to give a mixture of corresponding 5- and 3-hydroxyflavones, but that of 7-hydroxy-3,4',5,8-tetramethoxyflavone and its acetate with 10percent anhydrous aluminum chloride in acetonitrile afforded 6-acetyl-5,7-dihydroxy-3,4,8-trimethoxyflavone as a byproduct along with the 5- and 3-hydroxyflavones. (3) The demethylation of the acetates proceeded more smoothly than that of hydroxyflavones and was superior to that of the flavones with a hydroxy group. (4) These demethylations are available for the syntheses of 3- or 5-hydroxyflavones with no substituent at 6-position.

STEREOCHEMISTRY OF STRICTIC ACID AND RELATED FURANODITERPENES FROM CONYZA JAPONICA AND GRANGEA MADERASPATANA

Pandey, Umesh C.,Singhal, Ashok K.,Barua, Nabin C.,Sharma, R. P.,Baruah, Jogendra N.,et al.

, p. 391 - 398 (2007/10/02)

Extraction of Conyza japonica gave strictic acid, ent-2β-hydroxy-15,16-epoxy-3,13(16),14-clerodatrien-18-oic acid and 5,7-dihydroxy-3,8,4'-trimethoxyflavone.Extraction of Grangea maderaspatana gave (-)-hardwickiic acid, ent-15,16-epoxy-1,3,13(16),14-clerodatetraen-18-oic acid and 3-hydroxy-8-acetoxypentadeca-1,9,14-trien-4,6-diyne.The structure of ent-2β-hydroxy-15,16-epoxy-3,13(16),14-clerodatrien-18-oic acid was deduced by spectroscopic methods and by partial synthesis from (-)-hardwickiic acid and the stereochemistries of strictic acid and ent-15,16-epoxy-1,3,13(16),14-clerodatetraen-18-oic acid were established by correlation with ent-2β-hydroxy-15,16-epoxy-3,13(16),14-clerodatrien-18-oic acid. - Keywords: Conyza japonica; Grangea maderaspatana; Compositae; Astereae; strictic acid; clerodanes; 5,7-dihydroxy-3,8,4'-trimethoxyflavone; 3-hydroxy-8-acetoxy-pentadeca-1,9,14-trien-4,6-diyne.

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