Cat. No.: HY-Z0548

Methyl 3,4-dihydroxybenzoate

(Synonyms: Protocatechuic acid methyl ester; Methyl protocatechuate)

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Methyl 3,4-dihydroxybenzoate (Protocatechuic acid methyl ester; Methyl protocatechuate) is a major metabolite of antioxidant polyphenols found in green tea. Antioxidant and anti-inflammatory effect.

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

Purity: 99.50%
CAS No.: 2150-43-8
Formula: C₈H₈O₄
Molecular Weight:168.15

Storage:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month

Methyl 3,4-dihydroxybenzoate Chemical Structure

CAS No.: 2150-43-8

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Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- Cellular Effect
- In Vitro
- In Vivo
Chemical Information
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

Methyl 3,4-dihydroxybenzoate (Protocatechuic acid methyl ester; Methyl protocatechuate) is a major metabolite of antioxidant polyphenols found in green tea. Antioxidant and anti-inflammatory effect^[1].

Cellular Effect

Cell Line	Type	Value	Description	References
BMDM	IC₅₀	78 μM Compound: Table 1, R18C1	Inhibition of M-CSF/RANKL-induced osteoclast differentiation in C57BL/6 mouse bone marrow macrophage assessed as reduction in multinucleated TRAP+ cells incubated for 6 days with fresh media replacement on day 3 and measured on day 6 by TRAP staining-base Inhibition of M-CSF/RANKL-induced osteoclast differentiation in C57BL/6 mouse bone marrow macrophage assessed as reduction in multinucleated TRAP+ cells incubated for 6 days with fresh media replacement on day 3 and measured on day 6 by TRAP staining-base	[PMID: 31257875]
MDCK	CC₅₀	>183.07 μM Compound: 3a	Cytotoxicity against MDCK cells after 72 hrs by MTT assay Cytotoxicity against MDCK cells after 72 hrs by MTT assay	[PMID: 24803363]
MDCK	IC₅₀	18.27 μM Compound: 3a	Antiviral activity against Influenza A virus (A/Vietnam/1194/2004(H5N1)) infected in MDCK cells assessed as inhibition of viral replication after 2 to 3 days by crystal violet staining-based plaque reduction assay Antiviral activity against Influenza A virus (A/Vietnam/1194/2004(H5N1)) infected in MDCK cells assessed as inhibition of viral replication after 2 to 3 days by crystal violet staining-based plaque reduction assay	[PMID: 24803363]
P388	ED₅₀	1.4 μg/mL Compound: 11	Growth inhibition of mouse P388 cells Growth inhibition of mouse P388 cells	[PMID: 10650082]

In Vitro

Methyl 3,4-dihydroxybenzoate (Protocatechuic acid methyl ester; Methyl protocatechuate) alleviates the toxic effects of F^- via modulating its bioavailability, intracellular calcium level, mitochondrial membrane integrity and redox signaling in A549 cells^[1].

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

In Vivo

Methyl 3,4-dihydroxybenzoate (Protocatechuic acid methyl ester; Methyl protocatechuate) (25 or 50 mg/kg bw/day) prevents the cellular F^- accumulation and oxidative stress. Methyl 3,4-dihydroxybenzoate prevents the inflammatory and associated fibrosis progression by restoring the expression of RAGE and Nrf2^[2].

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

Chemical Information

CAS No. 2150-43-8
Appearance Solid
Molecular Weight 168.15
Formula C₈H₈O₄
Color White to off-white
SMILES

O=C(OC)C1=CC=C(O)C(O)=C1
Synonyms

Protocatechuic acid methyl ester; Methyl protocatechuate
Structure Classification
- Phenols
- Polyphenols
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvent & Solubility

In Vitro:

DMSO : 50 mg/mL (297.36 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

5.9471 mL

29.7357 mL

59.4714 mL

5 mM

1.1894 mL

5.9471 mL

11.8943 mL

10 mM

0.5947 mL

2.9736 mL

5.9471 mL

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.

Molarity Calculator

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

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Dilution Calculator

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

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

In Vivo:

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

Stock Solution Working Solution

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 (14.87 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.

Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)

Solubility: ≥ 2.5 mg/mL (14.87 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.

Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil

Solubility: ≥ 2.5 mg/mL (14.87 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 Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

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

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

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

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).

Working solution concentration: 0.22 mg/mL

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (273 KB)
SDS (396 KB)
- English - EN (396 KB)
- Français - FR (396 KB)
- Deutsch - DE (396 KB)
- Norwegian - NO (396 KB)
- Español - ES (396 KB)
- Swedish - SV (396 KB)
- Italian - IT (396 KB)
- Korean - KR (396 KB)
- Portuguese - PT (396 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Ameeramja J, et al. Protocatechuic acid methyl ester ameliorates fluoride toxicity in A549 cells. Food Chem Toxicol. 2017 Nov;109(Pt 2):941-950. [Content Brief]

[2]. Ameeramja J, et al. Protocatechuic acid methyl ester modulates fluoride induced pulmonary toxicity in rats. Food Chem Toxicol. 2018 Aug;118:235-244. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

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.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	5.9471 mL	29.7357 mL	59.4714 mL	148.6785 mL
	5 mM	1.1894 mL	5.9471 mL	11.8943 mL	29.7357 mL
	10 mM	0.5947 mL	2.9736 mL	5.9471 mL	14.8679 mL
	15 mM	0.3965 mL	1.9824 mL	3.9648 mL	9.9119 mL
	20 mM	0.2974 mL	1.4868 mL	2.9736 mL	7.4339 mL
	25 mM	0.2379 mL	1.1894 mL	2.3789 mL	5.9471 mL
	30 mM	0.1982 mL	0.9912 mL	1.9824 mL	4.9560 mL
	40 mM	0.1487 mL	0.7434 mL	1.4868 mL	3.7170 mL
	50 mM	0.1189 mL	0.5947 mL	1.1894 mL	2.9736 mL
	60 mM	0.0991 mL	0.4956 mL	0.9912 mL	2.4780 mL
	80 mM	0.0743 mL	0.3717 mL	0.7434 mL	1.8585 mL
	100 mM	0.0595 mL	0.2974 mL	0.5947 mL	1.4868 mL

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Methyl 3,4-dihydroxybenzoate

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Biological Activity

Chemical Information

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

Methyl 3,4-dihydroxybenzoate Related Classifications

HY-Z0548 Related Classifications