Itaconic acid

Itaconic acid (CAS 97-65-4) is a bio-based unsaturated dicarboxylic acid produced through fungal fermentation; a renewable alternative to petrochemical monomers in polymer synthesis.

Where is Itaconic acid used?

• Polymer and resin manufacturing: copolymerized with acrylic acid, styrene, or vinyl acetate to modify adhesion, flexibility, and hydrophilicity in coatings, binders, and pressure-sensitive adhesives
• Superabsorbent polymers: tunes water absorption in hygiene and agricultural products
• Personal care: co-monomer in film-forming polymers
• Food and flavor: acidulant and flavoring agent for beverage and confectionery systems needing precise pH control and stability
• Its reactive double bond and dual carboxylic groups make it a building block for specialty resins, coatings, and superabsorbent materials.

Good to know: Buyers should confirm feedstock origin with suppliers for bio-based claims.

Commercial specifications

• Purity typically 99% or above
• Bags, supersacks, and bulk quantities