Applications
Application. Methyl 4-hydroxybenzoate has antimicrobial characteristics and is used as preservative in pharmaceutical formulations and cosmetics. It can be combined with other parabens like propyl 4-hydroxybenzoate or ethyl 4-hydroxybenzoate.
 
Description
Methylparaben is a 4-hydroxybenzoate ester resulting from the formal condensation of the carboxy group of 4-hydroxybenzoic acid with methanol. It is the most frequently used antimicrobial preservative in cosmetics. It occurs naturally in several fruits, particularly in blueberries.
 
Preparation
The synthesis process comprises the steps of: adding p-hydroxybenzoic acid and methanol into a round-bottom flask according to the molar ratio of (1: 1.5)-(1: 4.0), and then adding 0.1-0.6g/ g of catalyst sodium hydrogen sulfate into the mixture; putting the round-bottom flask into a microwave oven;
 
Chemical Properties
Methyl-4-Hydroxybenzoate, also known as methyl paraben, is a chemical compound known for its antifungal and antibacterial properties, often utilized as a preservative in cosmetics, personal care products, and pharmaceuticals.
 
Definition
Methyl-4-Hydroxybenzoate, commonly known as methyl paraben, is an organic compound and ester of p-hydroxybenzoic acid, often utilized as a preservative in various consumer products to extend their shelf life and inhibit the growth of microbes.