2-Butenedioic acid (2Z)-, mono(2-((2-hydroxyethyl)(1-oxooctadecyl)amino)ethyl) ester, monoammonium salt 67815-97-8 Ammonium 2-((2-hydroxyethyl)(1-oxooctadecyl)amino)ethyl maleate Ammonium mono(N-(2-hydroxyethyl)-2-stearamidoethyl)maleate EINECS 267-206-2