{{위키데이터 속성 추적}}
{{chembox
| Watchedfields = changed
| verifiedrevid = 477313504
| OtherNames = (''Z'')-Butenedioic acid; ''cis''-Butenedioic acid; Maleic acid; Maleinic acid; Toxilic acid
| ImageFile = Maleinsäure.svg
| ImageSize = 
| ImageName = Skeletal formula of maleic acid
| ImageFile1 = Maleic-acid-3D-balls-A.png
| ImageSize1 = 
| ImageName1 = Ball-and-stick model of the maleic acid molecule
| ImageFile2 = Maleic-acid-3D-vdW-A.png
| ImageSize2 = 
| ImageName2 = Space-filling model of the maleic acid molecule
| ImageFile3 = Sample of maleic acid.jpg
| ImageSize3 = 175px
| PIN = (2''Z'')-But-2-enedioic acid <!-- Nomenclature of Organic Chemistry – IUPAC Recommendations and Preferred Names 2013 (Blue Book) -->
| Section1 = {{Chembox Identifiers
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 18300
| SMILES = O=C(O)\C=C/C(=O)O
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 392248
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 91XW058U2C
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = C01384
| InChI = 1/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
| InChIKey = VZCYOOQTPOCHFL-UPHRSURJBG
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 539648
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = VZCYOOQTPOCHFL-UPHRSURJSA-N
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 110-16-7
| EINECS = 203-742-5
| RTECS = OM9625000
| PubChem = 444266
| 3DMet = B00280
| Beilstein = 605762
| Gmelin = 49854
| DrugBank = DB04299
  }}
| Section2 = {{Chembox Properties
| C=4 | H=4 | O=4
| Appearance = White solid
| Density = 1.59 g/cm<sup>3</sup><ref name=Merck>{{Merck12th}}</ref>
| Solubility = 478.8 g/L at 20 C<ref name=GESTIS/>
| MeltingPtC = 135
| MeltingPt_notes = (decomposes)<ref name=GESTIS>{{GESTIS|ZVG=14640}}</ref>
| pKa = p''k''<sub>a1</sub> = 1.9<br />p''k''<sub>a2</sub> = 6.07<ref>CRC Handbook of Chemistry and Physics, 73rd ed.; CRC Press: Boca Raton, Florida., 1993</ref>
| MagSus = -49.71·10<sup>−6</sup> cm<sup>3</sup>/mol
  }}
| Section3 = {{Chembox Structure
| Dipole =
  }}
| Section7 = {{Chembox Hazards
| ExternalSDS = [http://hazard.com/msds/mf/baker/baker/files/m0325.htm MSDS from J. T. Baker]
| GHSPictograms = {{GHS07}}
| GHSSignalWord = Warning
| HPhrases = {{H-phrases|302|315|317|319|335}}
| PPhrases = {{P-phrases|261|264|270|271|272|280|301+312|302+352|304+340|305+351+338|312|321|330|332+313|333+313|337+313|362|363|403+233|405|501}}
| NFPA-H = 3
| NFPA-F = 0
| NFPA-R = 0
| NFPA-S =
| FlashPt =
  }}
| Section8 = {{Chembox Related
| OtherFunction_label = [[carboxylic acid]]s
| OtherFunction = [[fumaric acid]]<br />[[succinic acid]]<br />[[crotonic acid]]
| OtherCompounds = [[maleic anhydride]]<br />[[maleimide]]
  }}
}}
'''말레산'''(Maleic acid)은 2개의 [[카복실산]]기를 갖춘 분자인 [[다이카복실산]]의 하나인 [[유기 화합물]]이다. 화학식은 HO<sub>2</sub>CCH=CHCO<sub>2</sub>H이다. 푸마르산의 전신이다.

== 같이 보기 ==
* [[푸마르산]]
* [[말산]]
* [[말론산]]
* [[석신산]]

== 각주 ==
{{각주}}

== 외부 링크 ==
* [https://web.archive.org/web/20160304193119/http://www.inchem.org/documents/icsc/icsc/eics1186.htm International Chemical Safety Card 1186]
* [http://www.aim.env.uea.ac.uk/aim/accent2/inputpage.php Calculator: Water and solute activities in aqueous maleic acid] {{웨이백|url=http://www.aim.env.uea.ac.uk/aim/accent2/inputpage.php |date=20090511021547 }}
{{전거 통제}}

[[분류:다이카복실산]]
[[분류:엔온산]]