2-Acrylamido-2-methyl-1-propanesulfonic acid

2-Acrylamido-2-methyl-1-propanesulfonic acid (CAS 15214-89-8), commercially known as AMPS, is a reactive sulfonic acid monomer used to engineer performance polymers.

Where is 2-Acrylamido-2-methyl-1-propanesulfonic acid used?

• Water treatment: copolymerized into scale inhibitors and dispersants that control mineral deposition in cooling towers, boilers, and reverse osmosis systems
• Personal care: rheology modifiers and film formers in styling gels, skin creams, and sunscreen carriers
• Textile and paper processing: surface sizing, wet-strength improvement, and dye fixation
• Oilfield: monomer in fluid loss control additives and friction reducers for drilling and enhanced oil recovery
• Its strong anionic character makes it a building block for water-soluble and hydrogel polymer systems.

Good to know: Charge density and hydrolytic stability are critical sourcing considerations for manufacturers.

Commercial specifications

• White crystalline powder and aqueous solution, typically at 50% concentration
• Technical and industrial purity grades for polymer synthesis
• Specialty grades with higher purity thresholds for personal care and cosmetic polymer applications