(-)-Epigallocatechin-3-O-(4-O-methyl)gallate (Synonyms: EGCG4′′Me)

Cat. No.: HY-N15663 Pureté: 99.40%: Fiche technique
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(-)-Epigallocatechin-3-O-(4-O-methyl)gallate is an orally active catechin derivative found in Taiwanese oolong tea. (-)-Epigallocatechin-3-O-(4-O-methyl)gallate can inhibit histamine release and exhibits anti-inflammation and anti-allergic effect. (-)-Epigallocatechin-3-O-(4-O-methyl)gallate can be used for the researches of immunology and inflammation, such as type I allergic.

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(-)-Epigallocatechin-3-O-(4-O-methyl)gallate Chemical Structure

CAS No. : 224434-07-5

Size	Stock	Quantité
1 mg	En stock	Estimated Time of Arrival: December 31
5 mg	En stock	Estimated Time of Arrival: December 31
10 mg	En stock	Estimated Time of Arrival: December 31
50 mg	Obtenir un devis
100 mg	Obtenir un devis

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Description

In Vitro

(-)-Epigallocatechin-3-O-(4-O-methyl)gallate (Compound C-2) (50 μg/mL) inhibits histamine release from IgE/antigen-activated mouse mast cells, with a 45% inhibition rate^[1].
(-)-Epigallocatechin-3-O-(4-O-methyl)gallate (500 μg/mL 15 mins) exhibits excellent plasma stability with only 10% degradation rate^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

(-)-Epigallocatechin-3-O-(4-O-methyl)gallate (Compound C-2) (5-50 mg/kg, i.g.) significantly inhibits type I allergic reactions in mice sensitized with Ovalbumin (HY-W250978) and Incomplete Freund's adjuvant (HY-153808A)^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model:	Mice sensitized with ovalbumin (HY-W250978) and Incomplete Freund's adjuvant (HY-153808A)^[1]
Dosage:	5, a0 and 50 mg/kg
Administration:	Orally gavage
Result:	Achieved approximately 50% inhibition rate of abdominal wall blue dye permeation at 10 mg/kg.

Masse moléculaire

472.40

Formule

C₂₃H₂₀O₁₁

CAS No.

224434-07-5

Appearance

Solid

Color

Off-white to gray

SMILES

O=C(C1=CC(O)=C(C(O)=C1)OC)O[C@H]2[C@@H](C3=CC(O)=C(C(O)=C3)O)OC4=CC(O)=CC(O)=C4C2

Structure Classification

Initial Source

Livraison

Room temperature in continental US; may vary elsewhere.

Stockage

Powder	-20°C	3 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvant et solubilité

In Vitro:

DMSO : 100 mg/mL (211.69 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	2.1169 mL	10.5843 mL	21.1685 mL
5 mM	0.4234 mL	2.1169 mL	4.2337 mL
10 mM	0.2117 mL	1.0584 mL	2.1169 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. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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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: ≥ 2.5 mg/mL (5.29 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (5.29 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.5 mg/mL (5.29 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

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).

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.

Pureté et documentation

Purity: 99.40%

Select Batch:

Fiche technique (278 KB) SDS (252 KB)

COA (256 KB) HNMR (293 KB) LCMS (107 KB)

Instruction de manipulation (2659 KB)

Références

[1]. Sano M, et al. Maeda-Yamamoto M. Novel antiallergic catechin derivatives isolated from oolong tea. J Agric Food Chem. 1999 May;47(5):1906-10. [Content Brief]

Complete Stock Solution Preparation Table

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

DMSO	1 mM	2.1169 mL	10.5843 mL	21.1685 mL	52.9213 mL
	5 mM	0.4234 mL	2.1169 mL	4.2337 mL	10.5843 mL
	10 mM	0.2117 mL	1.0584 mL	2.1169 mL	5.2921 mL
	15 mM	0.1411 mL	0.7056 mL	1.4112 mL	3.5281 mL
	20 mM	0.1058 mL	0.5292 mL	1.0584 mL	2.6461 mL
	25 mM	0.0847 mL	0.4234 mL	0.8467 mL	2.1169 mL
	30 mM	0.0706 mL	0.3528 mL	0.7056 mL	1.7640 mL
	40 mM	0.0529 mL	0.2646 mL	0.5292 mL	1.3230 mL
	50 mM	0.0423 mL	0.2117 mL	0.4234 mL	1.0584 mL
	60 mM	0.0353 mL	0.1764 mL	0.3528 mL	0.8820 mL
	80 mM	0.0265 mL	0.1323 mL	0.2646 mL	0.6615 mL
	100 mM	0.0212 mL	0.1058 mL	0.2117 mL	0.5292 mL

(-)-Epigallocatechin-3-O-(4-O-methyl)gallate Related Classifications

Inflammation/Immunology

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

(-)-Epigallocatechin-3-O-(4-O-methyl)gallate224434-07-5EGCG4′′MeDrug DerivativeDrug derivativeCatechin derivativeTaiwanese oolong teaHistamineType I allergicMouse mast cellsOvalbuminIncomplete Freund's adjuvantInhibitorinhibitorinhibit

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(-)-Epigallocatechin-3-O-(4-O-methyl)gallate (Synonyms: EGCG4′′Me)

(-)-Epigallocatechin-3-O-(4-O-methyl)gallate Related Antibodies

Recommandations en vedette

•Related Screening Libraries:

•Related Small Molecules:

•Related Proteins:

Activité biologique

Pureté et documentation

Références

Avis client

(-)-Epigallocatechin-3-O-(4-O-methyl)gallate Related Antibodies

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