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5,7-Dihydroxychromone is a flavone decomposition product that exhibits diverse biological activities, including antimicrobial, antioxidant, and neuroprotective properties. It is found in A. hypogaea and has the ability to reduce radial growth of soil pathogenic fungi R. solani and S. rolfsii, while having no effect on soil pathogenic bacteria of the genus Bradyrhizobium.

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  • 31721-94-5 Structure
  • Basic information

    1. Product Name: 5,7-dihydroxychromone
    2. Synonyms: 5,7-Dihydroxy-4H-chroMen-4-one;4H-1-Benzopyran-4-one, 5,7-dihydroxy-;5,7-Dihydroxy-4H-1-benzopyran-4-one;5,7-Dihydroxy-γ-chromene-4-one;5,7-Dihydroxy-4-chromone;5,7-Dihydroxychromen-4-one;7-Dihydroxychromone
    3. CAS NO:31721-94-5
    4. Molecular Formula: C9H6O4
    5. Molecular Weight: 178.14
    6. EINECS: N/A
    7. Product Categories: chemical reagent;pharmaceutical intermediate;phytochemical;reference standards from Chinese medicinal herbs (TCM).;standardized herbal extract
    8. Mol File: 31721-94-5.mol
  • Chemical Properties

    1. Melting Point: 232-273℃
    2. Boiling Point: 399℃
    3. Flash Point: 171℃
    4. Appearance: /
    5. Density: 1.563
    6. Vapor Pressure: 5.94E-07mmHg at 25°C
    7. Refractive Index: 1.689
    8. Storage Temp.: 2-8°C
    9. Solubility: insoluble in H2O; ≥5.41 mg/mL in EtOH with gentle warming; ≥7.05 mg/mL in DMSO
    10. PKA: 6.57±0.20(Predicted)
    11. CAS DataBase Reference: 5,7-dihydroxychromone(CAS DataBase Reference)
    12. NIST Chemistry Reference: 5,7-dihydroxychromone(31721-94-5)
    13. EPA Substance Registry System: 5,7-dihydroxychromone(31721-94-5)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 31721-94-5(Hazardous Substances Data)

31721-94-5 Usage

Uses

Used in Antimicrobial Applications:
5,7-Dihydroxychromone is used as an antimicrobial agent for its ability to reduce the radial growth of soil pathogenic fungi R. solani and S. rolfsii, with IC50s of 18 and 26 μM, respectively.
Used in Antioxidant Applications:
5,7-Dihydroxychromone is used as an antioxidant agent for its ability to reduce increases in apoptosis and the levels of reactive oxygen species (ROS) induced by 6-OHDA in SH-SY5Y neuroblastoma cells.
Used in Neuroprotective Applications:
5,7-Dihydroxychromone is used as a neuroprotective agent for its ability to increase the levels of HO-1, NQO1, and GCLc in SH-SY5Y cells when used at concentrations ranging from 0.08 to 10 μM.

in vitro

5,7-dihydroxychromone (dhc) (0.4–10 μm) was found to protect against neuronal cell death and the ros generation in a dose-dependent manner in 6-ohda-induced sh-sy5y cells. dhc (0.08–10 μm) also dose-dependently increased the induction of nuclear nrf2, which has a binding affinity to are and activates are-driven phase ii antioxidant enzymes; nqo1, ho-1, and gclc[1]. daphniphyllum macropodum fruit extract (dme) administration in vivo and its major component 5,7-dihydroxychromone (1, 5, and 10 μg/ml) treatment in vitro dose dependently increased the mrna expressions of pparγ and lxrα in 3t3-l1 cells, 5,7-dihydroxychromone (1 μg/ml ) also potently increased adipocyte differentiation, suggesting that it functions as a pparγ agonist and has anti-diabetic properties[2]. 5,7-dihydroxychromone also demonstrated significant activity against hiv replication in h9 lymphocyte cells[3].

references

[1]. kim d w, lee k, kwon j, et al. neuroprotection against 6-ohda-induced oxidative stress and apoptosis in sh-sy5y cells by 5, 7-dihydroxychromone: activation of the nrf2/are pathway[j]. life sciences, 2015, 130: 25-30.[2]. koo h j, kwak j h, kang s c. anti-diabetic properties of daphniphyllum macropodum fruit and its active compound[j]. bioscience, biotechnology, and biochemistry, 2014, 78(8): 1392-1401.[3]. wu p l, lin f w, wu t s, et al. cytotoxic and anti-hiv principles from the rhizomes of begonia nantoensis[j]. chemical and pharmaceutical bulletin, 2004, 52(3): 345-349.

Check Digit Verification of cas no

The CAS Registry Mumber 31721-94-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,7,2 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31721-94:
(7*3)+(6*1)+(5*7)+(4*2)+(3*1)+(2*9)+(1*4)=95
95 % 10 = 5
So 31721-94-5 is a valid CAS Registry Number.
InChI:InChI=1/C9H6O4/c10-5-3-7(12)9-6(11)1-2-13-8(9)4-5/h1-4,10,12H

31721-94-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 5,7-dihydroxychromen-4-one

1.2 Other means of identification

Product number -
Other names 4H-1-Benzopyran-4-one, 5,7-dihydroxy-

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:31721-94-5 SDS

31721-94-5Relevant articles and documents

INHIBITORS OF ANTIGEN PRESENTATION BY HLA-DR

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Page/Page column 128, (2021/10/11)

Chromanone compounds, pharmaceutical compositions containing them, methods of making them, and methods of using them including methods for treating disease states, disorders, and conditions associated with the inhibition of antigen presentation by HLA-DR.

Natural and Synthetic Flavonoids as Potent Mycobacterium tuberculosis UGM Inhibitors

Villaume, Sydney A.,Fu, Jian,N'Go, Inès,Liang, Hui,Lou, Huayong,Kremer, Laurent,Pan, Weidong,Vincent, Stéphane P.

, p. 10423 - 10429 (2017/08/07)

This study reports a novel class of inhibitors of uridine 5′-diphosphate (UDP) galactopyranose mutase (UGM) derived from a screening of natural products. This enzyme is an essential biocatalyst involved in the cell wall biosynthesis of Mycobacterium tuberculosis. Flavonoids are potent inhibitors of UGM. The synthesis of novel methylated flavonoids allowed a structure–activity relationship analysis to be performed and which functional groups and structural elements were required for UGM inhibition could be determined. The binding mode of one of the best inhibitors was found to be noncompetitive. Docking simulations indicated that this molecule was likely to bind UGM in its open conformation, in a cavity recently identified as a “druggable” pocket. Importantly, two of the best inhibitors of the M. tuberculosis UGM displayed moderate activity against whole M. tuberculosis cells. This study reports the first natural products that act as inhibitor of UGM. Given the importance of natural products in medicinal chemistry, these results create new opportunities for the discovery of new antitubercular agents.

Difluoromethylthiolation of Phenols and Related Compounds with a HF2CSO2Na/Ph2PCl/Me3SiCl System

Huang, Zhongyan,Matsubara, Okiya,Jia, Shichong,Tokunaga, Etsuko,Shibata, Norio

supporting information, p. 934 - 937 (2017/02/26)

A novel HF2CSO2Na/Ph2PCl/Me3SiCl system is disclosed for the late-stage direct difluoromethylthiolation of Csp2 and Csp3 nucleophiles. Difluoromethylthiolation of phenols and naphthols proceeded nicely under this system to regioselectively provide corresponding SCF2H compounds in good yields. Other substrates such as indoles, pyrroles, pyrazoles, enamines, ketones, and β-keto esters were also transformed to corresponding SCF2H products in good yields. The late-stage direct difluoromethylthiolation of a number of natural products and pharmaceutically attractive molecules was also achieved.

Natural product Hirtellanine B and its derivatives in the preparation process for the preparation of medicine for treating tumor with the application of the

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Paragraph 0116; 0117, (2016/10/10)

The present invention provides a preparation method of a natural product Hirtellanine B, wherein 2,4,6-trihydroxyacetophenone is adopted as a raw material, and steps of compound a preparation, compound b preparation, compound c preparation, compound d preparation, compound e preparation, compound f preparation, compound g preparation, and the like are performed to prepare the natural product Hirtellanine B. According to the present invention, biological activity screening is performed on Hirtellanine B and 14 Hirtellanine B derivatives, and results show that the natural product Hirtellanine B can inhibit proliferations of Jurkat cells, Raji cells and K562 cells, and the compounds provide a certain inhibition activity for tumor cells. The method has characteristics of easily available raw material, high reaction yield and reasonable operation, and is suitable for industrial production. The Hirtellanine B and the derivatives thereof can be used for preparing tumor treatment drugs, and have great clinical values. The natural product Hirtellanine B preparation method reaction formulas are as the follows.

Ru(II)-Catalyzed Site-Selective Hydroxylation of Flavone and Chromone Derivatives: The Importance of the 5-Hydroxyl Motif for the Inhibition of Aurora Kinases

Kim, Kiho,Choe, Hyeonjeong,Jeong, Yujeong,Lee, Jun Hee,Hong, Sungwoo

supporting information, p. 2550 - 2553 (2015/05/27)

An efficient protocol for Ru(II)-catalyzed direct C-H oxygenation of a broad range of flavone and chromone substrates was developed. This convenient and powerful synthetic tool allows for the rapid installation of the hydroxyl group into the flavone, chromone, and other related scaffolds and opens the way for analog synthesis of highly potent Aurora kinase inhibitors. The molecular docking simulations indicate that the formation of bidentate H-bonding patterns in the hinge regions between the 5-hydroxyflavonoids and Ala213 was the significant binding force, which is consistent with experimental and computational findings.

Multifunctional tacrine-flavonoid hybrids with cholinergic, β-amyloid-reducing, and metal chelating properties for the treatment of Alzheimer's disease

Li, Su-Yi,Wang, Xiao-Bing,Xie, Sai-Sai,Jiang, Neng,Wang, Kelvin D.G.,Yao, He-Quan,Sun, Hong-Bin,Kong, Ling-Yi

, p. 632 - 646 (2013/10/22)

A new series of tacrine-flavonoid hybrids (13a-u) had been designed, synthesized, and evaluated as multifunctional cholinesterase (ChE) inhibitors against Alzheimer's disease (AD). In vitro studies showed that most of the molecules exhibited a significant ability to inhibit ChE and self-induced amyloid-β (Aβ1-42) aggregation. Kinetic and molecular modeling studies also indicated compounds were mixed-type inhibitors, binding simultaneously to active, peripheral and mid-gorge sites of AChE. Particularly, compound 13k was found to be highly potent and showed a balanced inhibitory profile against ChE and self-induced Aβ1-42 aggregation. Moreover, it also showed excellent metal chelating property and low cell toxicity. These results suggested that 13k might be an excellent multifunctional agent for AD treatment.

Studies on the total synthesis of Hirtellanine A: Regioselective synthesis of benzopyran

Zheng, Shu-Yan,Li, Xiao-Ping,Tan, Hong-Sheng,Yu, Chun-Hui,Zhang, Jing-Hua,Shen, Zheng-Wu

, p. 1356 - 1366 (2013/04/10)

The total synthesis of Hirtellanine A was accomplished by two different synthetic approaches. Hirtellanine A was assembled using a one-pot, tandem acid-mediated deprotection and tautomerization cascade starting from quinone derivative 23. The key features

A mild and efficient protocol to synthesize chromones, isoflavones, and homoisoflavones using the complex 2,4,6-trichloro-1,3,5-triazine/ dimethylformamide

Basha, G. Mahaboob,Yadav, S. Kumar,Srinuvasarao,Prasanthi,Ramu,Mangarao,Siddaiah

, p. 763 - 768 (2013/08/23)

A mild and efficient one-flask method has been developed for the synthesis of chromones, isoflavones, and homoisoflavones from 2-hydroxyacetophenones, deoxybenzoins, and dihydrochalcones, respectively, via one-carbon extension using the complex 2,4,6-trichloro-1,3,5-triazine/dimethylformamide. Deoxybenzoins and dihydrochalcones were prepared in situ by the reaction of readily available substituted phenols with phenylacetic acids and 3-phenylpropanoic acids, respectively. This method allows the synthesis of a wide range of compounds with multiple phenolic hydroxyls and other substituents. The methodology has been applied to the synthesis of three naturally occurring isoflavones such as formononetin (9c), daidzein (9d), and retusin (9h).

Total synthesis of Hirtellanine A

Zheng, Shu-Yan,Shen, Zheng-Wu

supporting information; experimental part, p. 2883 - 2887 (2010/06/14)

The first total synthesis of hirtellanines A is described. The key transformations include (i) base-mediated regioselective pyran ring formation, (ii) one-pot sequential boronation and Suzuki-Miyaura cross-coupling, and (iii) a tandem acid-induced deprotection and subsequent tautomerizations.

Isoflavone glycosides: Synthesis and evaluation as α-glucosidase inhibitors

Wei, Guo,Yu, Biao

experimental part, p. 3156 - 3163 (2009/06/06)

On the basis of the structure of 4′,7,8-trihydroxyisoflavone 7-O-α-D-arabinofuranoside (namely A-76202, 1), a Rhodococcus metabolite showing potent inhibitory activities against the α-glucosidases of rat liver microsome (IC50 = 0.46 ng/mL), 26 analogs, each with minor variations at the sugar moiety and the isoflavone A and B rings, were readily synthesized. Notably, a new and efficient method was developed for the divergent synthesis of the B-ring congeners of the isoflavone glycosides by using Suzuki-Miyaura coupling as the final step. Modifications at the sugar moiety and the isoflavone A ring significantly diminish the activity, whereas variations at the B ring are largely tolerated for retaining the potent α-glucosidase inhibitory activity. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.

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