Fumaric Acid working Standard

L-Malic Acid Impurity A (As per 34.4 EP Monograph); (2E)-2-Butenedioic Acid; (2E)-But-2-enedioic Acid; (E)-2-Butenedioic Acid; trans-1,2-Ethylenedicarboxylic Acid; trans-2-Butenedioic Acid; trans-Butenedioic Acid; 2-(E)-Butenedioic Acid; (E)-Butenedioic Acid; Allomaleic Acid; Lichenic Acid; 2-Butenedioic acid, [E]-; Fumaric Acid (USP);