2-Aminoethylphosphonic acid

2-Aminoethylphosphonic acid (CAS 2041-14-7), also known as 2-AEP, Ciliatine, and Phosphonoethylamine, is a naturally occurring organophosphonic amino acid first isolated from biological tissue. It carries no assigned E-code and is classified under HS code 29319000 within the broader amino acids and peptides category.

In water treatment formulations, 2-AEP functions as a chelating agent, binding calcium, magnesium, and heavy metal ions to inhibit scale formation and corrosion. In agricultural and feed applications, it serves as a bioavailable phosphorus source and stabilising additive. Its phosphonate group also provides antioxidant activity, protecting sensitive formulations from oxidative degradation.

2-AEP is supplied as a white to beige crystalline powder and is available in technical and research grades. Procurement should confirm REACH registration status and supplier documentation for intended end-use compliance. Standard packaging formats include multi-layer bags and fibre drums sized for laboratory through to industrial-scale quantities.