4-Methyl-2-pentenoic acid10321-71-837 % similar trans-2-Pentenoic acid13991-37-237 % similar trans-Aconitic acid4023-65-835 % similar Aconitic acid499-12-735 % similar cis-Aconitic acid585-84-235 % similar Acrylic acid-maleic acid copolymer29132-58-935 % similar 2-Hexenoic acid1191-04-434 % similar trans-2-Hexenoic acid13419-69-734 % similar Monomethyl fumarate2756-87-834 % similar Monomethyl maleate3052-50-434 % similar Sodium fumarate5873-57-434 % similar Ethyl 3,3-dimethylacrylate638-10-834 % similar Sodium fumarate7704-73-634 % similar Maleic acid-methyl vinyl ether copolymer25153-40-633 % similar Maleamic acid557-24-433 % similar (E)-3-Ethoxyacrylic acid6192-01-433 % similar 2,4-Pentadienoic acid626-99-333 % similar 4-Bromocrotonic acid13991-36-132 % similar p-Phenylenediacrylic acid16323-43-632 % similar 4,4,4-Trifluorocrotonic acid71027-02-632 % similar