In the title compound C11H9BrCl2O2. which represents the Z isomer. the methylacrylate moiety is essentially planar within 0. 039 (2) Å and has an extended trans configuration. https://www.bekindtopets.com/limited-value-Microline-S1229RS-TFC-RO-Membrane-35-50-gpd-mega-choice/