Maleic anhydride108-31-6100 % similar Ethylene-maleic anhydride copolymer9006-26-280 % similar Crotonic anhydride623-68-765 % similar Maleic anhydride-methyl vinyl ether copolymer9011-16-955 % similar Acrylic acid-maleic anhydride copolymer26677-99-652 % similar Acrylic anhydride2051-76-550 % similar Dimethyl maleate624-48-650 % similar Dimethyl fumarate624-49-750 % similar Diethyl maleate141-05-943 % similar Diethyl fumarate623-91-643 % similar 1,4-Dipropyl (2Z)-2-butenedioate2432-63-539 % similar Methyl E-crotonate623-43-836 % similar Dibutyl fumarate105-75-936 % similar Dibutyl maleate105-76-036 % similar Monomethyl fumarate2756-87-836 % similar Monomethyl maleate3052-50-436 % similar Di-N-octyl maleate2915-53-933 % similar Methyl trans-β-methoxyacrylate5788-17-033 % similar 3-Bromo-2,5-furandione5926-51-233 % similar Monoethyl fumarate2459-05-432 % similar