3d image of fumaric acid skeletal formula

fumaric acid ethylenedicarboxylic 2-butenedioic trans-butenedioic allomaleic boletic donitic lichenic fruit-like taste food additive e297 food adjuvants ingredient agent ins number preservative fumarate succinate trans cis citric acid cycle intermediate adenosine triphosphate urea tca photosynthesis metabolite metabolism biosynthesis mechanism pathway path catabolism biosynthetic biogenesis substrate precursor synthesis derivative bioprecursor metabolic enzyme endogenous 3d