Witbreak DRC-163
Witbreak DRC-163, Resin oxyalkylate, Alkyl phenol alkoxylates, Witbreak® DRC-163 demulsifier is a resin oxyalkylate intermediate used in oilfield production primarily as a Water Dropper and sometimes as a Dryer and an Interface Control Agent for a wide range of API crudes globally.
https://www.nouryon.com/product/witbreak-drc-163/