Record Information
Version1.0
Creation date2010-04-08 22:05:29 UTC
Update date2019-11-26 02:57:51 UTC
Primary IDFDB002712
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameMaltol
DescriptionFound in chicory, roasted malt, breads, milk, heated butter, uncured smoked pork, cocoa, coffee, roasted barley, roasted peanuts, roasted filbert, soybean etc. Flavour enhancer and flavouring agent Maltol is a naturally occurring organic compound that is used primarily as a flavor enhancer. It is found in the bark of larch tree, in pine needles, and in roasted malt (from which it gets its name). Because it has the odor of cotton candy and caramel, maltol is used to impart a sweet aroma to fragrances. Maltol's sweetness adds to the odor of freshly baked bread, and is used as a flavor enhancer (E number E636) in breads and cakes. Maltol is a biomarker for the consumption of soy beans and other soy products.
CAS Number118-71-8
Structure
Thumb
Synonyms
SynonymSource
e636ChEMBL, HMDB
2-Hydroxy-3-methyl-4H-pyran-4-oneHMDB
2-Methyl pyromeconic acidHMDB
2-Methyl-3-hydroxy-4-pyranoneHMDB
2-Methyl-3-hydroxy-4-pyroneHMDB
2-Methyl-3-hydroxypyroneHMDB
2-Methyl-3-oxy-gamma-pyroneHMDB
3-Hydroxy-2-methyl-1,4-pyroneHMDB
3-Hydroxy-2-methyl-4-pyranoneHMDB
3-Hydroxy-2-methyl-4-pyroneHMDB, MeSH
3-Hydroxy-2-methyl-4H-pyran-4-oneHMDB
3-Hydroxy-2-methyl-g-pyroneHMDB
3-Hydroxy-2-methyl-gamma-pyroneHMDB
3-Hydroxy-2-methylpyroneHMDB
3-Hydroxy-2-pyran-4-oneHMDB
5-Hydroxy-6-methyl-4H-pyran-4-oneHMDB
FEMA 2656HMDB
Laricinic acidHMDB
Larixic acidHMDB
Larixinic acidHMDB
PalatoneHMDB
TalmonHMDB
VeltolHMDB
VetolHMDB
3-Hydroxy-2-methylpyran-4-onebiospider
4H-Pyran-4-one, 3-hydroxy-2-methyl-biospider
Maltoldb_source
Predicted Properties
PropertyValueSource
Water Solubility134 g/LALOGPS
logP-0.24ALOGPS
logP0.55ChemAxon
logS0.03ALOGPS
pKa (Strongest Acidic)9.45ChemAxon
pKa (Strongest Basic)-3.6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area46.53 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity33.72 m³·mol⁻¹ChemAxon
Polarizability11.6 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC6H6O3
IUPAC name3-hydroxy-2-methyl-4H-pyran-4-one
InChI IdentifierInChI=1S/C6H6O3/c1-4-6(8)5(7)2-3-9-4/h2-3,8H,1H3
InChI KeyXPCTZQVDEJYUGT-UHFFFAOYSA-N
Isomeric SMILESCC1=C(O)C(=O)C=CO1
Average Molecular Weight126.11
Monoisotopic Molecular Weight126.031694058
Classification
Description Belongs to the class of organic compounds known as pyranones and derivatives. Pyranones and derivatives are compounds containing a pyran ring which bears a ketone.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyrans
Sub ClassPyranones and derivatives
Direct ParentPyranones and derivatives
Alternative Parents
Substituents
  • Pyranone
  • Heteroaromatic compound
  • Cyclic ketone
  • Oxacycle
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
Disposition

Route of exposure:

Source:

Biological location:

Role

Industrial application:

Physico-Chemical Properties
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateSolid
Physical DescriptionNot Available
Mass CompositionC 57.14%; H 4.80%; O 38.06%DFC
Melting PointMp 161-162°DFC
Boiling PointNot Available
Experimental Water Solubility10.9 mg/mL at 15 oCYALKOWSKY,SH & DANNENFELSER,RM (1992)
Experimental logP0.09SANGSTER (1993)
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV Data[base] lmax 317 (e 7300) (NaOH) (Berdy)DFC
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
EI-MSMass Spectrum (Electron Ionization)splash10-004i-9400000000-e2ddaa7bab18abea72172015-03-01View Spectrum
Predicted GC-MSMaltol, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-004i-9500000000-9ab04dd29d36893ecd26Spectrum
Predicted GC-MSMaltol, 1 TMS, Predicted GC-MS Spectrum - 70eV, Positivesplash10-05ir-7900000000-600ebd59fb3066652709Spectrum
Predicted GC-MSMaltol, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
MS/MSLC-MS/MS Spectrum - Linear Ion Trap , negativesplash10-0002-9000000000-c04cc7216a3bd4a235e72017-09-14View Spectrum
MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-004i-4900000000-aa92125c58514d72564e2021-09-20View Spectrum
MS/MSLC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-683526173a1cb2e60e9a2021-09-20View Spectrum
MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-004i-4900000000-9cacfb0610f4c652bbfd2021-09-20View Spectrum
MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-004i-0900000000-68373306ed89c51d3c8e2021-09-20View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-0900000000-38440dc8d01235ec60302016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-2900000000-d055c9796b264b599b6a2016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-014i-9000000000-d0af17e3cc2dd76131f32016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0900000000-69feb02bb47c24872d732016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-016s-9300000000-76b24f4971833037af7b2016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-002g-9000000000-c6a03d90d227ae6c56532016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004l-6900000000-962e671fbe15160f20042021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-9100000000-46cfacfee845f86dc9592021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9000000000-6cab6127640d08dfd89f2021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-3900000000-5b997e243689ece018722021-09-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0arv-9100000000-db550e8ed4a495f56e5c2021-09-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-2ce65d95643025ecae242021-09-24View Spectrum
NMR
TypeDescriptionView
1D NMR1H NMR Spectrum (1D, 90 MHz, CDCl3, experimental)Spectrum
1D NMR13C NMR Spectrum (1D, 25.16 MHz, CDCl3, experimental)Spectrum
1D NMR1H NMR Spectrum (1D, CDCl3, experimental)Spectrum
1D NMR13C NMR Spectrum (1D, CDCl3, 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, 1000 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 1000 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
ChemSpider ID8066
ChEMBL IDCHEMBL31422
KEGG Compound IDC11918
Pubchem Compound ID8369
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB30776
CRC / DFC (Dictionary of Food Compounds) IDCNF60-X:CNF60-X
EAFUS ID2101
Dr. Duke IDMALTOL
BIGG IDNot Available
KNApSAcK IDC00037471
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet ID118-71-8
GoodScent IDrw1002341
SuperScent IDNot Available
Wikipedia IDMaltol
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / Bioactivities
DescriptorIDDefinitionReference
Anti convulsant52217 An agent that reduces or prevents seizures, commonly used in managing epilepsy, neuropathic pain, and mood disorders, by stabilizing abnormal electrical activity in the brain.DUKE
Anti-fatigue52217 An agent that reduces physical and mental exhaustion, enhancing endurance and vitality. It plays a biological role in regulating energy metabolism and mitigating oxidative stress. Therapeutically, anti-fatigue agents are used to manage chronic fatigue syndrome, improve athletic performance, and alleviate symptoms of anemia and other debilitating conditions.DUKE
Anti-oxidant22586 An agent that neutralizes free radicals, reducing oxidative stress and cell damage. Its biological role involves protecting cells from harm, and it has therapeutic applications in managing chronic diseases, such as cancer, diabetes, and neurodegenerative disorders, with key medical uses including anti-aging, anti-inflammatory, and cardio protective effects.DUKE
Cancer preventive35610 An agent that inhibits the development and progression of cancer, reducing tumor formation and growth. It plays a biological role in blocking carcinogenic pathways, and has therapeutic applications in chemoprevention. Key medical uses include reducing the risk of cancer in high-risk individuals and preventing cancer recurrence.DUKE
Central nervous system sedative35470 An agent that calms the brain and nervous system, reducing anxiety and agitation. Therapeutically, it's used to manage insomnia, seizures, and restlessness, and as an adjunct for anesthesia and medical procedures, promoting relaxation and reducing stress.DUKE
Name48318 flavorDUKE
FungistatAn agent that inhibits fungal growth, used to prevent fungal infections, commonly applied in therapeutic applications such as treating skin and nail infections, and managing fungal diseases in immunocompromised patients.DUKE
Motor depressantAn agent that reduces the normal functioning level of motor neurons, mainly in voluntary muscles, used to treat conditions such as muscle spasms, seizures, and anxiety disorders, promoting relaxation and relieving symptoms.DUKE
Pesticide25944 An agent that kills or repels pests, playing a biological role in controlling insect, weed, and fungal populations. Therapeutically, pesticides have limited applications, but some are used to treat ectoparasitic infestations, such as lice and scabies. Key medical uses include topical treatments for head lice and scabies, highlighting their role in managing parasitic infections.DUKE
Sedative35717 An agent that calms nervous activity, reducing anxiety and inducing relaxation. Its biological role is to slow down brain function, promoting sleep and relieving stress. Therapeutically, sedatives are used to manage insomnia, anxiety disorders, and seizures, as well as to prepare patients for medical procedures.DUKE
Sweetener50505 A substance that adds sweetness to food and beverages, often used as a sugar substitute. Its biological role is to stimulate taste receptors, while its therapeutic applications include managing calorie intake and blood sugar levels. Key medical uses include treating diabetes and obesity, as well as reducing tooth decay risk.DUKE
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
Flavours
FlavorCitations
caramel
  1. Arn, H, Acree TE. “Flavornet: A database of aroma compounds based on odor potency in natural products”. Developments in Food Science 40 (1998): 27. doi:10.1016/S0167-4501(98)80029-0
  2. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
sweet
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
cotton
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
candy
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
jam
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
fruity
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
baked
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
bread
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
Files
MSDSshow
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content ReferenceNot Available