(E)-4-methoxy-4-oxobut-2-enoicacid-D5;(2E)-2-Butenedioic Acid 1-Methyl Ester-d5; (E)-2-Butenedioic Acid Monomethyl Ester-d5; Fumaric Acid Methyl Ester-d5; Methyl Hydrogen Fumarate-d5; Monomethyl Fumarate-d5;Fumaric Acid Monomethyl Ester-d5
(E)-4-methoxy-4-oxobut-2-enoicacid-D5;(2E)-2-Butenedioic Acid 1-Methyl Ester-d5; (E)-2-Butenedioic Acid Monomethyl Ester-d5; Fumaric Acid Methyl Ester-d5; Methyl Hydrogen Fumarate-d5; Monomethyl Fumarate-d5;Fumaric Acid Monomethyl Ester-d5