1. Properties Itaconic acid or methylene succinic acid MW: 130.1; MF: C5H6O4; Usage. (1).Itaconic acid and its polymers can be ... packaging to reduce bacteria contamination.(4).Esters of itaconic acid can be used in paint, ion-exchange resin, lubricant ... , plasticizer, sealant and molding plastics.(5)Some other itaconic acid derivatives are used in medicine, cosmetics, lubricant, thickener, herbcide ...