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Record Information
Version2.0
Created at2022-04-27 22:52:16 UTC
Updated at2022-04-27 22:52:16 UTC
NP-MRD IDNP0051545
Secondary Accession NumbersNone
Natural Product Identification
Common NameHumulone
DescriptionHumulone, also known as alpha bitter acid, belongs to the class of organic compounds known as acyloins. These are organic compounds containing an alpha hydroxy ketone. Acyloins are formally derived from reductive coupling of carboxylic acyl groups. Humulone is an extremely weak basic (essentially neutral) compound (based on its pKa). Humulone is found in Humulus lupulus . Humulone was first documented in 1949 (PMID: 16695762). An optically active cyclic ketone consisting of 3,5,6-trihydroxycyclohexa-2,4-dien-1-one bearing two 3-methylbut-2-en-1-yl substituents at positions 4 and 6 as well as a 3-methylbutanoyl group at the 2-position (PMID: 10631313) (PMID: 14920156) (PMID: 14948476) (PMID: 17372274).
Structure
Thumb
Synonyms
ValueSource
(6R)-3,5,6-Trihydroxy-2-isovaleryl-4,6-bis(3-methylbut-2-enyl)cyclohexa-2,4-dienoneChEBI
alpha-HumulonChEBI
HumulonChEBI
a-HumulonGenerator
Α-humulonGenerator
3,5,6-Trihydroxy-4-isovaleryl-2,6-bis(3-methyl-2-butenyl)-2,4-cyclohexadiene-1-oneMeSH
alpha Bitter acidMeSH
HumuloneMeSH
Chemical FormulaC21H30O5
Average Mass362.4660 Da
Monoisotopic Mass362.20932 Da
IUPAC Name(6R)-3,5,6-trihydroxy-4,6-bis(3-methylbut-2-en-1-yl)-2-(3-methylbutanoyl)cyclohexa-2,4-dien-1-one
Traditional Namehumulone
CAS Registry NumberNot Available
SMILES
CC(C)CC(=O)C1=C(O)C(CC=C(C)C)=C(O)[C@](O)(CC=C(C)C)C1=O
InChI Identifier
InChI=1S/C21H30O5/c1-12(2)7-8-15-18(23)17(16(22)11-14(5)6)20(25)21(26,19(15)24)10-9-13(3)4/h7,9,14,23-24,26H,8,10-11H2,1-6H3/t21-/m1/s1
InChI KeyVMSLCPKYRPDHLN-OAQYLSRUSA-N
Experimental Spectra
Not Available
Predicted Spectra
Spectrum TypeDescriptionDepositor IDDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 25 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 252 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 50 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 101 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 126 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 151 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 176 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 226 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Humulus lupulusPlant
Chemical Taxonomy
Description Belongs to the class of organic compounds known as acyloins. These are organic compounds containing an alpha hydroxy ketone. Acyloins are formally derived from reductive coupling of carboxylic acyl groups.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbonyl compounds
Direct ParentAcyloins
Alternative Parents
Substituents
  • Acyloin
  • Vinylogous acid
  • Tertiary alcohol
  • Cyclic ketone
  • Ketone
  • Polyol
  • Enol
  • Organic oxide
  • Hydrocarbon derivative
  • Alcohol
  • Aliphatic homomonocyclic compound
Molecular FrameworkAliphatic homomonocyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP2.31ALOGPS
logP3.6ChemAxon
logS-3.5ALOGPS
pKa (Strongest Acidic)4.13ChemAxon
pKa (Strongest Basic)-4.2ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area94.83 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity106.3 m³·mol⁻¹ChemAxon
Polarizability40.35 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00002697
Chemspider IDNot Available
KEGG Compound IDC10695
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkHumulone
METLIN IDNot Available
PubChem Compound442911
PDB IDNot Available
ChEBI ID5769
Good Scents IDNot Available
References
General References
  1. Yamamoto K, Wang J, Yamamoto S, Tobe H: Suppression of cyclooxygenase-2 gene transcription by humulon of beer hop extract studied with reference to glucocorticoid. FEBS Lett. 2000 Jan 14;465(2-3):103-6. doi: 10.1016/s0014-5793(99)01727-5. [PubMed:10631313 ]
  2. ERDMANN WF: [Phytoncides. I. Lupulone and humulone; their antibacterial action and their use in tuberculous infections]. Pharmazie. 1951 Sep;6(9):442-51. [PubMed:14920156 ]
  3. ERDMANN WF: [Lupulon and humulon, their antibacterial effects and therapeutic use in tuberculous infections]. Pharmazie. 1952 Feb;7(2):75-86. [PubMed:14948476 ]
  4. Lewis JC, Alderton G, Carson JF, Reynolds DM, Maclay WD: LUPULON AND HUMULON-ANTIBIOTIC CONSTITUENTS OF HOPS. J Clin Invest. 1949 Sep;28(5 Pt 1):916-9. doi: 10.1172/JCI102178. [PubMed:16695762 ]
  5. Lee JC, Kundu JK, Hwang DM, Na HK, Surh YJ: Humulone inhibits phorbol ester-induced COX-2 expression in mouse skin by blocking activation of NF-kappaB and AP-1: IkappaB kinase and c-Jun-N-terminal kinase as respective potential upstream targets. Carcinogenesis. 2007 Jul;28(7):1491-8. doi: 10.1093/carcin/bgm054. Epub 2007 Mar 19. [PubMed:17372274 ]