Record Information
Version1.0
Creation date2020-04-20 17:41:16 UTC
Update date2020-09-17 15:42:25 UTC
Primary IDFDB112196
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameD-Maltose
DescriptionD-Maltose, also known as malt sugar, maltobiose or alpha-malt sugar, is a disaccharide consisting of two glucose subunits joined via an alpha-1-4 bond. Carbohydrates are generally divided into different categories based on the number of sugar subunits; monosaccharides (1 sugar subunit), disaccharides (2 sugar subunits), oligosaccharides (3 or more sugar subunits) and polysaccharides (hundreds to thousands of subunits, including starch). Maltose is a common byproduct of starch. When beta-amylase breaks down starch, it removes two glucose units at a time, thereby producing maltose. Maltose can be broken down to glucose by the maltase enzyme, which catalyses the hydrolysis of the glycosidic bond. D-Maltose exists in all living species, ranging from bacteria to humans. Maltose was 'discovered' by Augustin-Pierre Dubrunfaut, although this discovery was not widely accepted until it was confirmed in 1872 by Irish chemist and brewer Cornelius O'Sullivan. Its name comes from malt, combined with the suffix '-ose' which is used in naming all sugars. Like glucose, maltose is a reducing sugar, because the ring of one of the two glucose units can open to present a free aldehyde group. Maltose, when placed in aqueous solution, exhibits mutarotation. This is because the α and β isomers that are formed by the different conformations of the anomeric carbon have different specific rotations. In aqueous solutions, these two forms are in equilibrium. Maltose has a sweet taste, but is only about 30-60% as sweet as sucrose. Within humans, D-maltose participates in a number of enzymatic reactions. In particular, D-maltose can be converted into Alpha-D-glucose; which is mediated by intestinal maltase-glucoamylase. In addition, D-maltose can be converted into Alpha-D-glucose through its interaction with the enzyme glycogen debranching enzyme. In humans, D-maltose is involved in the metabolic disorder called the sucrase-isomaltase deficiency. Outside of the human body, D-maltose is found in high concentrations a variety of foods such as fruit gums, marshmallows, and oriental wheats. It is found in lower concentrations in bread, bagels, breakfast cereals, crackers, cornmeal, wheat, barley, candies, honey, molasses, beer and wines. Maltose is found mainly in grains and cereals. Wheat, corn, barley and rye all contain varying amounts of maltose. For some foods, cooking can increase the maltose content. For example, raw sweet potatoes don't have any maltose, but cooked sweet potatoes contain maltose at varying amounts depending on the type of sweet potato. Maltose is a component of malt, a substance which is obtained in the process of allowing grain to soften in water and germinate. Maltose is also found in partially hydrolysed starch products like maltodextrin, corn syrup and acid-thinned starch.
CAS NumberNot Available
Structure
Thumb
Synonyms
SynonymSource
Not AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility586 g/LALOGPS
logP-3ALOGPS
logP-4.7ChemAxon
logS0.23ALOGPS
pKa (Strongest Acidic)11.25ChemAxon
pKa (Strongest Basic)-3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count11ChemAxon
Hydrogen Donor Count8ChemAxon
Polar Surface Area189.53 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity68.34 m³·mol⁻¹ChemAxon
Polarizability31.43 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC12H22O11
IUPAC name(2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-{[(2R,3S,4R,5S,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy}oxane-3,4,5-triol
InChI IdentifierInChI=1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2/t3-,4-,5-,6+,7-,8+,9-,10-,11+,12-/m1/s1
InChI KeyGUBGYTABKSRVRQ-DKBJLJRDSA-N
Isomeric SMILESOC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@H](O)[C@@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O
Average Molecular Weight342.2965
Monoisotopic Molecular Weight342.116211546
Classification
Description Belongs to the class of organic compounds known as o-glycosyl compounds. These are glycoside in which a sugar group is bonded through one carbon to another group via a O-glycosidic bond.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbohydrates and carbohydrate conjugates
Direct ParentO-glycosyl compounds
Alternative Parents
Substituents
  • O-glycosyl compound
  • Disaccharide
  • Oxane
  • Secondary alcohol
  • Hemiacetal
  • Oxacycle
  • Organoheterocyclic compound
  • Polyol
  • Acetal
  • Hydrocarbon derivative
  • Primary alcohol
  • Alcohol
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Ontology
OntologyNo ontology term
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionNot Available
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
Predicted GC-MSD-Maltose, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-03e9-4897000000-332d470623cd7f1e1cedSpectrum
Predicted GC-MSD-Maltose, 4 TMS, Predicted GC-MS Spectrum - 70eV, Positivesplash10-014i-3421129000-03a98898fd3278f95502Spectrum
Predicted GC-MSD-Maltose, TBDMS_3_3, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TBDMS_3_16, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TBDMS_4_2, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TBDMS_4_10, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TBDMS_4_11, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TBDMS_4_12, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TBDMS_4_20, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TBDMS_4_32, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TBDMS_4_33, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, "D-Maltose,3TBDMS,#3" TMS, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_1_1, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_1_2, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_1_3, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_1_4, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_1_5, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_1_6, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_1_7, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_1_8, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_2_1, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_2_2, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_2_3, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSD-Maltose, TMS_2_4, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-01ox-0149000000-74748828832d879323422012-07-24View Spectrum
MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-008c-2950000000-4ebee22b86c2cc9ee3ab2012-07-24View Spectrum
MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-00kg-9710000000-041dbc580f99b88815182012-07-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03gl-0907000000-a1de7813fbe8b5258c102017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03e9-0900000000-79cc5059a3f338e8c1dd2017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-03di-3900000000-851d0bc84d91b6e095792017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-002f-0749000000-af1d18f2bc3ab8e028832017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0200-2902000000-67218697344afb9e70fa2017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-01td-4900000000-40aa2d8125769803cfbb2017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-0109000000-9d0f9a68a67bafd734ab2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01rw-3898000000-7f495a1bcfdbed6466c42021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-01ti-9210000000-b8a83657f0266d372bee2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000x-1069000000-9cd867711bca0eecf9352021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-9365000000-65403961bfb5e35eaa0d2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-000l-9200000000-0de9785c1c5df1430dd22021-09-22View Spectrum
NMR
TypeDescriptionView
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Spectrum
1D NMR13C NMR Spectrum (1D, 125 MHz, H2O, experimental)Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, H2O, experimental)Spectrum
2D NMR[1H, 1H]-TOCSY. Unexported temporarily by An Chi on Oct 15, 2021 until json or nmrML file is generated. 2D NMR Spectrum (experimental)Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Spectrum
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound IDNot Available
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSNot Available
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference