1. Metabolic Enzyme/Protease
  2. Endogenous Metabolite
  3. Maleic Acid

Maleic Acid 

Cat. No.: HY-Y0367 Purity: 99.86%
Handling Instructions

Maleic Acid is a Glutamate Decarboxylase (GAD) inhibitor of E. coli and L. monocytogenes.

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

Maleic Acid Chemical Structure

Maleic Acid Chemical Structure

CAS No. : 110-16-7

Size Price Stock Quantity
Free Sample (0.5-1 mg)   Apply Now  
10 mM * 1 mL in Water USD 55 In-stock
Estimated Time of Arrival: December 31
500 mg USD 50 In-stock
Estimated Time of Arrival: December 31
5 g USD 60 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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Maleic Acid is a Glutamate Decarboxylase (GAD) inhibitor of E. coli and L. monocytogenes.

IC50 & Target[1][2]



Human Endogenous Metabolite


In Vitro

The MICs of WT 10403S for the acids (e.g., Maleic Acid) are 34 mM, 25 mM, 31 mM and 30 mM which correspond to pH values prior to growth of 4.84, 5.14, 5.32 and 5.02 respectively. Of all compounds tested, Maleic Acid is the least inhibitory despite acting at a lower pH (4.84). The most acid resistant (10403S) and the weakest (EGD-e) strain are challenged with 8.6 mM and 4.3 mM of each organic acid at pH 3 and 3.3 respectively. On both strains, Maleic Acid is the most bactericidal[2].

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

Molecular Weight









Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (861.55 mM; Need ultrasonic)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 8.6155 mL 43.0775 mL 86.1549 mL
5 mM 1.7231 mL 8.6155 mL 17.2310 mL
10 mM 0.8615 mL 4.3077 mL 8.6155 mL
*Please refer to the solubility information to select the appropriate solvent.

Purity: 99.86%

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Maleic AcidEndogenous MetaboliteBacterialInhibitorinhibitorinhibit

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