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Record Information
Version2.0
Created at2022-04-27 22:47:12 UTC
Updated at2022-04-27 22:47:13 UTC
NP-MRD IDNP0051407
Secondary Accession NumbersNone
Natural Product Identification
Common NameUsnic acid
Description(-)-Usnic acid, also known as (S)-usnate, belongs to the class of organic compounds known as acetophenones. These are organic compounds containing the acetophenone structure. Usnic acid is found in Asahinea chrysantha, Asahinea scholanderi, Cladonia convoluta, Cladonia fallax, Cladonia spp., Cladonia stellaris, Dactylina arctica, Dolichousnea diffracta, Dolichousnea longissima, Evernia prunastri, Evernia spp., Hypotrachyna caraccensis, Lecanora spp., Letharia vulpina, Lobaria scrobiculata, Neuropogon trachycarpus, Ophioparma ventosa, Parmelia caraccensis, Parmelia spp., Phoma sp., Protousnea magellanica, Protusnea malacea, Punctelia subrudecta, Ramalina calicaris, Ramalina hierrensis, Ramalina pollinaria, Ramalina spp., Ramalina tingitana, Stereocaulon alpinum, Usnea annulata, Usnea dasopoga, Usnea diffracta, Usnea lapponica, Usnea longissima , Usnea spp., Usnea undulata and Xanthoparmelia vagans. Based on a literature review very few articles have been published on (-)-usnic acid.
Structure
Thumb
Synonyms
ValueSource
(S)-UsnateChEBI
(S)-Usnic acidChEBI
(-)-UsnateGenerator
Chemical FormulaC18H16O7
Average Mass344.3190 Da
Monoisotopic Mass344.08960 Da
IUPAC Name(2S)-4,10-diacetyl-5,11,13-trihydroxy-2,12-dimethyl-8-oxatricyclo[7.4.0.0^{2,7}]trideca-1(9),4,6,10,12-pentaen-3-one
Traditional Name(2S)-4,10-diacetyl-5,11,13-trihydroxy-2,12-dimethyl-8-oxatricyclo[7.4.0.0^{2,7}]trideca-1(9),4,6,10,12-pentaen-3-one
CAS Registry NumberNot Available
SMILES
CC(=O)C1=C(O)C(C)=C(O)C2=C1OC1=CC(O)=C(C(C)=O)C(=O)[C@@]21C
InChI Identifier
InChI=1S/C18H16O7/c1-6-14(22)12(8(3)20)16-13(15(6)23)18(4)10(25-16)5-9(21)11(7(2)19)17(18)24/h5,21-23H,1-4H3/t18-/m1/s1
InChI KeyWEYVVCKOOFYHRW-GOSISDBHSA-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
Asahinea chrysanthaLOTUS Database
Asahinea scholanderiLOTUS Database
Cladonia convolutaLOTUS Database
Cladonia fallaxFungi
Cladonia spp.Fungi
Cladonia stellarisFungi
Dactylina arctica-
Dolichousnea diffractaLOTUS Database
Dolichousnea longissimaLOTUS Database
Evernia prunastriLOTUS Database
Evernia spp.-
Hypotrachyna caraccensisLOTUS Database
Lecanora spp.-
Letharia vulpina-
Lobaria scrobiculataLOTUS Database
Neuropogon trachycarpusLOTUS Database
Ophioparma ventosaLOTUS Database
Parmelia caraccensisFungi
Parmelia spp.Fungi
Phoma sp.Fungi
Protousnea magellanicaLOTUS Database
Protusnea malacea-
Punctelia subrudectaLOTUS Database
Ramalina calicarisLOTUS Database
Ramalina hierrensisLOTUS Database
Ramalina pollinariaLOTUS Database
Ramalina spp.Fungi
Ramalina tingitanaFungi
Stereocaulon alpinumLOTUS Database
Usnea annulataFungi
Usnea dasopogaLOTUS Database
Usnea diffractaFungi
Usnea lapponicaLOTUS Database
Usnea longissimaFungi
Usnea spp.Fungi
Usnea undulataLOTUS Database
Xanthoparmelia vagansLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as acetophenones. These are organic compounds containing the acetophenone structure.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassAcetophenones
Direct ParentAcetophenones
Alternative Parents
Substituents
  • Acetophenone
  • Coumaran
  • Aryl ketone
  • Aryl alkyl ketone
  • Vinylogous acid
  • Ketone
  • Oxacycle
  • Polyol
  • Enol
  • Organoheterocyclic compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organooxygen compound
  • Organic oxygen compound
  • Carbonyl group
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
  • usnic acid (CHEBI:122 )
  • Dibenzofurans, griseofulvins, dibenzopyrans and xanthones (C10101 )
  • Dibenzofurans, griseofulvins, dibenzopyrans and xanthones (LMPK13060002 )
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
logP2.33ALOGPS
logP1.88ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)3.62ChemAxon
pKa (Strongest Basic)-5.4ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area121.13 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity90.65 m³·mol⁻¹ChemAxon
Polarizability34.12 ųChemAxon
Number of Rings3ChemAxon
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 IDNot Available
Chemspider ID390984
KEGG Compound IDC10101
BioCyc IDCPD-7411
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound442614
PDB IDNot Available
ChEBI ID122
Good Scents IDNot Available
References
General ReferencesNot Available