Maleic acid. Maleic acid esters are also called maleates, for instance dimethyl maleate. In industry, maleic acid is derived by hydrolysis of maleic anhydride, the latter being produced by oxidation of benzene or butane. COVID-19 is an emerging, rapidly evolving situation. Maleic acid is more soluble in water than fumaric acid. Smiles: OC (=O)\C=C\C (O)=O. [8] Light converts elemental bromine into a bromine radical, which attacks the alkene in a radical addition reaction to a bromo-alkane radical; and now single bond rotation is possible. ; CRC Press: Boca Raton, Florida., 1993. Molecular Weight: 116.073 g/mol. The maleate ion is useful in biochemistry as an inhibitor of transaminase reactions. Stable. Both properties of maleic acid can be explained on account of the intramolecular hydrogen bonding[5] that takes place in maleic acid at the expense of intermolecular interactions, and that are not possible in fumaric acid for geometric reasons. Combustible. N,N,2,2-tetramethyl-1-propanamine (10076-31-0), diethyl 4-methoxybenzoylphosphonate (16703-95-0), 1-fluoro-4-(2,3,3-trichloro-1-cyclopropen-1-yl)benzene, chloromethylsulfanyl-cyclohexane (68483-71-6), 1-methyl-8-phenyl-3,9-dihydro-1H-purine-2,6-dione (2850-37-5), 6-bromo-3,3-dimethyl-2,3,7,8-tetrahydrocyclopenta[ij]isoquinoline, 8-methoxy-8-methylbicyclo[4.2.0]octan-2-one, 7,9,9-trimethyl-2-oxabicyclo[5.2.0]nonan-3-one, 1a,9b-dihydrophenanthro[9,10-b]oxirene (585-08-0), (5Z)-3-acetyl-5-(benzylsulfanylmethylidene)-4-hydroxypyrrol-2-one (731-57-7), N-(5-oxo-4,5-dihydro[1,2]dithiolo[4,3-b]pyrrol-6-yl)acetamide (488-04-0), 3-hydroxy-2,4,6-cycloheptatrien-1-one (3324-76-3), 3-hydroxy-1,1,4,4-tetramethyl-tetralin-2-one, 1,1,5,5-tetramethyl-1,5-dihydro-3-benzoxepine-2,4-dione, Journal of the American Chemical Society, 86, p. 4603, 1964. Maleic acid is the cis-isomer of butenedioic acid, whereas fumaric acid is the trans-isomer. Its chemical formula is HO2CCH=CHCO2H. InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-, InChI=1/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-, Except where otherwise noted, data are given for materials in their, CRC Handbook of Chemistry and Physics, 73rd ed. Maleic acid is also used as an adhesion promoter for different substrates, such as nylon and zinc coated metals e.g galvanized steel, in methyl methacrylate based adhesives. carfenazine, chlorpheniramine, pyrilamine, methylergonovine, and thiethylperazine. Maleic acid or cis-butenedioic acid is an organic compound that is a dicarboxylic acid, a molecule with two carboxyl groups. Molecular Formula: C 4 H 4 O 4. [9] It reacts with thionyl chloride or phosphorus pentachloride to give the maleic acid chloride (it is not possible to isolate the mono acid chloride). Get … This conversion, an isomerization, is catalysed by a variety of reagents, such as mineral acids and thiourea. CopyCopied, Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, Click to predict properties on the Chemicalize site, For medical information relating to Covid-19, please consult the, https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18300, ACD/Labs Percepta Platform - PhysChem Module, US Environmental Protection Agency’s EPISuite™, Compounds with the same molecular formula, Search Google for structures with same skeleton. Maleic acid | C4H4O4 | CID 444266 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. The melting point of maleic acid (135 °C) is also much lower than that of fumaric acid (287 °C).

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