Dioctyl Phthalate (DOP)

Dioctyl Phthalate is supplied in standard industrial grades, typically with purity above 99%, designed for large-scale polymer processing. Chemically, DOP is a phthalate ester with the molecular formula C₂₄H₃₈O₄ and a molecular weight of approximately 390.56 g/mol, offering low volatility and strong permanence within polymer matrices. Its primary application is as a plasticizer for PVC, where it is extensively used in flexible PVC products such as cables and wires, synthetic leather, flooring, films, sheets, hoses, footwear, and inflatable products. Beyond PVC, DOP is also used in adhesives, sealants, rubber compounds, coatings, pigments, and some specialty inks, contributing to improved flow, durability, and low-temperature performance. It provides good electrical insulation properties, excellent aging resistance, and stable performance under normal processing temperatures. Due to its balanced viscosity and compatibility, DOP remains a benchmark plasticizer for many industrial formulations worldwide.