2-PENTENEDIOIC ACID (CIS),DIETHYL ESTER MFC9 H14 O4 2-pentenedioic acid, diethyl ester 2049-67-4 InChI=1/C9H14O4/c1-3-12-8(10)6-5-7-9(11)13-4-2/h5-6H,3-4,7H2,1-2H diethyl pent-2-enedioate