7,8,3′,4′-Tetrahydroxyflavone

Name: 7,8,3′,4′-Tetrahydroxyflavone
Brand: MedChemExpress
SKU: HY-N8600
Rating: 4.5 (1 reviews)

Cat. No.: HY-N8600 Purity: 99.51%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

7,8,3′,4′-Tetrahydroxyflavone (compound 2) is a potent xanthine oxidase (XOD) inhibitor with an IC₅₀ value of 10.488 µM.

For research use only. We do not sell to patients.

7,8,3′,4′-Tetrahydroxyflavone Chemical Structure

CAS No. : 3440-24-2

Size	Price	Stock	Quantity
5 mg	USD 30	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 50	In-stock	Estimated Time of Arrival: December 31
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Customer Review

Based on 1 publication(s) in Google Scholar

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Biological Activity
Purity & Documentation
References
Customer Review

Description

7,8,3′,4′-Tetrahydroxyflavone (compound 2) is a potent xanthine oxidase (XOD) inhibitor with an IC₅₀ value of 10.488 µM^[1].

IC₅₀ & Target

IC₅₀: 10.488 µM (XOD)^[1]

Cellular Effect

Cell Line	Type	Value	Description	References
A-431	IC₅₀	1 μM Compound: Fig 20, R1C1	Inhibition of telomerase extracted from human A431 cells after 30 mins by TRAP assay Inhibition of telomerase extracted from human A431 cells after 30 mins by TRAP assay	10.1039/C0MD00241K
HEK293	IC₅₀	0.2 μM Compound: Fig 20, R1C1	Inhibition of telomerase extracted from HEK293 cells using 5'-bAATCCGTCGAGCAGAGTT as primer assessed as polymerization of telomeric repeats to the end of the primers after 2 hrs by Flash-Plate assay Inhibition of telomerase extracted from HEK293 cells using 5'-bAATCCGTCGAGCAGAGTT as primer assessed as polymerization of telomeric repeats to the end of the primers after 2 hrs by Flash-Plate assay	10.1039/C0MD00241K
HEK293	IC₅₀	0.2 μM Compound: 3, THyF	Inhibition of telomerase in human HEK293 cells by flashplate assay Inhibition of telomerase in human HEK293 cells by flashplate assay	[PMID: 22413845]
HEK293	IC₅₀	0.2 μM Compound: 1	Inhibition of human telomerase from HEK293 cell extracts by Flash-Plate assay Inhibition of human telomerase from HEK293 cell extracts by Flash-Plate assay	[PMID: 15588081]
HeLa	IC₅₀	0.23 μM Compound: 3, THyF	Inhibition of telomerase in human HeLa cells using 5'-AAT CCG TCG AGC AGA GTT-3' as substrate incubated for 15 mins prior to extension reaction by telomeric repeat amplification protocol Inhibition of telomerase in human HeLa cells using 5'-AAT CCG TCG AGC AGA GTT-3' as substrate incubated for 15 mins prior to extension reaction by telomeric repeat amplification protocol	[PMID: 22413845]
HeLa	IC₅₀	0.25 μM Compound: 3, THyF	Inhibition of telomerase in human HeLa cells using 5'-AAT CCG TCG AGC AGA GTT-3' as substrate incubated for 15 mins prior to extension reaction followed by compound washout by spin-telomeric repeat amplification protocol Inhibition of telomerase in human HeLa cells using 5'-AAT CCG TCG AGC AGA GTT-3' as substrate incubated for 15 mins prior to extension reaction followed by compound washout by spin-telomeric repeat amplification protocol	[PMID: 22413845]
Huh-7	CC₅₀	> 50 μM Compound: 19	Cytotoxicity against human Huh7.5.1 cells by MTT assay Cytotoxicity against human Huh7.5.1 cells by MTT assay	[PMID: 22445328]
Huh-7	EC₅₀	23.3 μM Compound: 19	Antiviral activity against HCV JFH-1 J399EM infected in Human Huh7.5.1 cells assessed as suppression of viral replication after 72 hrs by EGFP assay Antiviral activity against HCV JFH-1 J399EM infected in Human Huh7.5.1 cells assessed as suppression of viral replication after 72 hrs by EGFP assay	[PMID: 22445328]
MV4-11	IC₅₀	30.17 μM Compound: 61	Antiproliferative activity against human MV4-11 cells by CCK-8 assay Antiproliferative activity against human MV4-11 cells by CCK-8 assay	[PMID: 35324195]

Molecular Weight

286.24

Formula

C₁₅H₁₀O₆

CAS No.

3440-24-2

Appearance

Solid

Color

Light yellow to yellow

SMILES

O=C1C=C(C2=CC=C(O)C(O)=C2)OC3=C(O)C(O)=CC=C13

Structure Classification

Initial Source

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

Solvent & Solubility

In Vitro:

DMSO : 200 mg/mL (698.71 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	3.4936 mL	17.4679 mL	34.9357 mL
5 mM	0.6987 mL	3.4936 mL	6.9871 mL
10 mM	0.3494 mL	1.7468 mL	3.4936 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 5 mg/mL (17.47 mM); Clear solution

This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 5 mg/mL (17.47 mM); Clear solution

This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

DMSO +

Tween-80 +

Saline

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Calculation results:

Working solution concentration: mg/mL

Method for preparing stock solution: mg drug dissolved in μL DMSO (Stock solution concentration: mg/mL).

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).

Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.

If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.

Purity & Documentation

Purity: 99.51%

Select Batch:

Data Sheet (272 KB) SDS (252 KB)

COA (249 KB) HNMR (283 KB) LCMS (94 KB)

Handling Instructions (2659 KB)

References

[1]. Tung YT, et al. Inhibition of xanthine oxidase by Acacia confusa extracts and their phytochemicals. J Agric Food Chem. 2010 Jan 27;58(2):781-6. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	3.4936 mL	17.4679 mL	34.9357 mL	87.3393 mL
	5 mM	0.6987 mL	3.4936 mL	6.9871 mL	17.4679 mL
	10 mM	0.3494 mL	1.7468 mL	3.4936 mL	8.7339 mL
	15 mM	0.2329 mL	1.1645 mL	2.3290 mL	5.8226 mL
	20 mM	0.1747 mL	0.8734 mL	1.7468 mL	4.3670 mL
	25 mM	0.1397 mL	0.6987 mL	1.3974 mL	3.4936 mL
	30 mM	0.1165 mL	0.5823 mL	1.1645 mL	2.9113 mL
	40 mM	0.0873 mL	0.4367 mL	0.8734 mL	2.1835 mL
	50 mM	0.0699 mL	0.3494 mL	0.6987 mL	1.7468 mL
	60 mM	0.0582 mL	0.2911 mL	0.5823 mL	1.4557 mL
	80 mM	0.0437 mL	0.2183 mL	0.4367 mL	1.0917 mL
	100 mM	0.0349 mL	0.1747 mL	0.3494 mL	0.8734 mL