이 원료는 평균 58몰로 에톡실화 된 하이드로제네이티드캐스터오일의 아이소스테아릭애씨드에스터의 폴리에틸렌글라이콜 유도체이다.

Castor oil (Ricinus communis), hydrogenated, ethoxylated, monoisooctadecanoate (58 mol EO average molar ratio): PEG-50 Hydrogenated Castor Oil Isostearate is a polyethylene glycol derivative of theisostearic acid ester of Hydrogenated Castor Oil (q.v.) with an average ethoxylation value of 50.

本品は、水添ヒマシ油（＊）のイソステアリン酸エステルのポリエチレングリコールエーテルであり、酸化エチレンの平均付加モル数は58である。