2-Butenoyl chloride10487-71-565 % similar trans-Crotonyl chloride625-35-465 % similar Acryloyl chloride814-68-650 % similar Cinnamoyl chloride102-92-146 % similar 3-Ethoxy-2-propenoyl chloride6191-99-746 % similar 3-Methyl-2-butenoyl chloride3350-78-545 % similar 1,4-Benzoquinone106-51-431 % similar Phosgene75-44-531 % similar Oxalyl chloride79-37-831 % similar 2,5-Dichloro-1,4-benzoquinone615-93-030 % similar