NP Ethoxylate 9.5, also known as nonylphenol ethoxylate 9.5 moles, is a nonionic surfactant derived from the ethoxylation of nonylphenol. It is commonly used in various industrial and household applications, including detergents, cleaners, emulsifiers, and textile processing. NP Ethoxylate 9.5 is valued for its ability to lower surface tension, enhance wetting and dispersing properties, and improve the solubility of substances in aqueous solutions. However, it has raised environmental concerns due to its persistence, bioaccumulation, and potential toxicity to aquatic organisms.