{{chembox
| Watchedfields = changed
| verifiedrevid = 477167440
| Name = <small>D</small>-Fructose
| ImageFileL1 = Skeletal Structure of Cyclic D-Fructose.svg
|   ImageSizeL1 = 120px
|   ImageNameL1 = D-Fructofuranose
| ImageFileR1 = D-Fructose.svg
|   ImageSizeR1 = 60px
| ImageFile2 = Skeletal Structure of D-Fructose.svg
|   ImageSize2 = 220px
| IUPACName = Fructose
| SystematicName = 1,3,4,5,6-Pentahydroxyhex-2-one
|   OtherNames = fruit succar,<ref>{{Cite web |url=http://mw4.m-w.com/dictionary/fructose |title=Fructose - Merriam Webster dictionary |access-date=2013-07-18 |archive-date=2013-06-05 |archive-url=https://web.archive.org/web/20130605000940/http://mw4.m-w.com/dictionary/fructose |url-status=dead }}</ref> levulose,<ref>Levulose comes from the Latin word laevus, [[levo]], "left side", levulose is the old word for the most occurring [[isomer]] of fructose. D-fructose rotate plane-polarised light to the left, hence the name.[http://www.monashscientific.com.au/Levulose.htm].</ref> D-fructofuranose, D-fructose, D-arabino-hexulose
| Section1 = {{Chembox Identifiers
|   ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 388775
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 6YSS42VSEV
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 604608
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = C02336
| InChI = 1/C6H12O6/c7-1-3-4(9)5(10)6(11,2-8)12-3/h3-5,7-11H,1-2H2/t3-,4-,5+,6-/m1/s1
| InChIKey = RFSUNEUAIZKAJO-ARQDHWQXBD
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C6H12O6/c7-1-3-4(9)5(10)6(11,2-8)12-3/h3-5,7-11H,1-2H2/t3-,4-,5+,6-/m1/s1
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = RFSUNEUAIZKAJO-ARQDHWQXSA-N
| CASNo = 57-48-7
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 11769129
| EC-number = 200-333-3
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 28645
| SMILES = O[C@H]1[C@H](O)[C@H](O[C@]1(O)CO)CO
| ATCCode_prefix = V06
| ATCCode_suffix = DC02
}}
| Section2 = {{Chembox Properties
|  C=6|H=12|O=6
|  Density = 1.694 g/cm<sup>3</sup>
|  MeltingPtC = 103
  }}
}}
'''Fructose''', or '''fruit succar''', is a semple [[monosaccharide]] foond in mony plants, whaur it is eften linkit tae [[glucose]] furmin [[sucrose]]. It is ane o the three dietary monosaccharides, alang wi glucose an [[galactose]], that are absorbed directly intae the bluidstream durin [[digestion]]. Fructose wis discovered bi French chemist [[Augustin-Pierre Dubrunfaut]] in 1847.<ref>Fruton, J.S. Molecules of Life 1972, Wiley-Interscience</ref> Pure, dry fructose is a very sweet, white, odorless, crystalline solit an is the maist watter-soluble o aw the succars.<ref Name=Hyvonen&Koivistoinen1982>{{Cite book |year=1982 |author=Hyvonen, L., & Koivistoinen, P |chapter=Fructose in Food Systems |editor=Birch, G.G. & Parker, K.J |title=Nutritive Sweeteners |url=https://archive.org/details/nutritivesweeten0000unse |pages=[https://archive.org/details/nutritivesweeten0000unse/page/133 133]–144 |place=London & New Jersey |publisher=Applied Science Publishers |isbn=0-85334-997-5 |postscript=<!--None-->}}</ref>
Frae plant soorces, fructose is foond in [[honey]], tree an vine fruits, flouers, [[berries]], an maist ruit vegetables. In plants, fructose mey be present as the monosaccharide or as a molecular component o [[sucrose]], which is a [[disaccharide]].