Labelled 4-Nonyl Phenol Diethoxylate (N650440). Used as analytical standard for environmental analysis. ISO/CD 18857-2 (International Organization for Standardization, Geneva) describes a new international standard method for the determination of octylphenol, nonylphenol, their mono- and diethyoxylates, and bisphenol A in nonfiltered samples of drinking, groundwater, surface water, and wastewater.
![2-[2-(4-nonylphenoxy)ethoxy]ethanol Structure](/CAS/20180529/GIF/1346602-11-6.gif)