Skip to content
Vinony
English
EnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسیहिन्दीไทย한국어中文日本語
maltose

File:Maltose2.svg · Wikimedia Commons · See Wikimedia Commons

EntityQ170002· pop 72· linked from 689 articles

maltose

Sign in to save

Also known as 4-(alpha-D-glucopyranosido)-alpha-glucopyranose, Cextromaltose, maltobiose, D-maltose, 4-O-alpha-D-glucopyranosyl-D-glucose, alpha-D-Glcp-(1->4)-D-Glcp, 4-O-alpha-D-glucopyranosyl-D-glucopyranose, D-(+)-maltose

thumb|right|260px|Amylase reaction consisting of hydrolyzing amylose, producing maltose

OverviewAI-generated

Maltose is a chemical compound with the formula C₁₂H₂₂O₁₁. Its IUPAC name is (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol. The molecule has a mass of 342.116212 and a weight of 342.30.

Structural properties include a charge of 0, an xlogp of -4.7, and a topological polar surface area of 190. The compound features 8 hydrogen bond donors and 11 hydrogen bond acceptors. It is represented by the canonical SMILES string C(C1C(C(C(C(O1)OC2C(OC(C(C2O)O)O)CO)O)O)O)O and the isomeric SMILES string C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O[C@@H]2[C@H](OC([C@@H]([C@H]2O)O)O)CO)O)O)O)O.

Synthesized by Vinony from 18 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Chemical data

Formula
C12H22O11
Molecular weight
342.3 g/mol
IUPAC name
(2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol
SMILES
C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O[C@@H]2[C@H](OC([C@@H]([C@H]2O)O)O)CO)O)O)O)O
InChIKey
GUBGYTABKSRVRQ-PICCSMPSSA-N
XLogP
-4.7
Polar surface area
190 Ų
H-bond donors
8
H-bond acceptors
11
Formal charge
0

via PubChem

Research

14,683 papers

via PubMed

~5 min read

Encyclopedic overview

6 sections
Contents
  • History
  • Structure and nomenclature
  • Properties
  • Sources and absorption
  • References
  • External links

{{chembox | Verifiedfields = changed | Watchedfields = removed | verifiedrevid = 47716923 | ImageFile = Maltose2.svg | ImageSize = | ImageName = α-Maltose | ImageCaption = α-Maltose | ImageClass = skin-invert-image | ImageFile1 = Maltose structure.svg | ImageSize1 = | ImageName1 = β-Maltose | ImageCaption1 = β-Maltose | ImageClass1 = skin-invert-image | IUPACName = α--Glucopyranosyl-(1→4)-β--glucopyranose 4-O-α-D-Glucopyranosyl-D-glucopyranose | OtherNames = | SystematicName = (3R,4R,5S,6R)-6-(hydroxymethyl)-5-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxane-2,3,4-triol | Section1 = | Section2 = | Section7 = | Section8 = }} thumb|right|260px|Amylase reaction consisting of hydrolyzing amylose, producing maltose

Maltose ( or ), also known as maltobiose or malt sugar, is a disaccharide formed from two units of glucose joined with an α(1→4) bond. In the isomer isomaltose, the two glucose molecules are joined with an α(1→6) bond. Maltose is the two-unit member of the amylose homologous series, the key structural motif of starch. When beta-amylase breaks down starch, it removes two glucose units at a time, producing maltose. An example of this reaction is found in germinating seeds, which is why it was named after malt. Unlike sucrose, it is a reducing sugar.

Excerpted from Wikipedia’s “maltose” article, available under the CC BY-SA 4.0 licence.

Gallery (9)

Available in 71 languages

Show 52 more

via Wikidata sitelinks · CC0