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Record Information
Version2.0
Created at2022-03-10 18:36:40 UTC
Updated at2022-03-10 22:19:14 UTC
NP-MRD IDNP0044855
Secondary Accession NumbersNone
Natural Product Identification
Common NameCannabinol
DescriptionCannabinol (CBN), belongs to the class of organic compounds known as dibenzopyrans. These are organic heterocyclic compounds with a structure containing a dibenzopyran moiety, made up of two benzene rings fused to a central pyran ring. Cannabinol is the best known and most abundant member of the cannabinoid subclass of cannabis compounds known as cannabinols or CBNs. Cannabinol is psychoactive, although in a lesser degree as THC and related compounds. CBN is most likely a degradation product of tetrahydrocannabinoic acid (THCA) or of tetrahydrocannabinol (THC). CBN can also be obtained through the decarboxilation of cannabinolic acid (CBNA), another product of the degradation of THCA (PMID: 1140243 ). Independently of the routes by which CBN is produced, it is found in higher quantities in Cannabis products that have been stored over an extended period of time or that have been exposed to sunlight or heat (PMID: 26870049 ). CBN is mildly psychoactive (PMID: 1221432 ) And acts as a partial agonist of the CB1 and CB2 receptors, with a higher affinity for the CB2 receptors (PMID: 11020293 ). In both cases the affinity of CBN to these receptors is lower than that of THC (PMID: 9667767 ). The legal status of CBN is uncertain, as it is not included in the United Nations’ Convention on Psychotropic Substances. However, it could still be considered as an analogue of THC in some states of the United States of America, leaving open the possibility of penal prosecution. The main pharmacological characteristics of Cannabinol are sedative, antibiotic, anticonvulsant and anti-inflammatory (PMID: 6991645 ). Cannabinol (CBN) is also found in cannabis smoke and is volatilized during the combustion of cannabis (https://Doi.Org/10.1007/978-1-59259-947-9_2).
Structure
Thumb
Synonyms
ValueSource
6,6,9-Trimethyl-3-pentyl-6H-dibenzo[b,d]pyran-1-olPhytoBank
3-Amyl-1-hydroxy-6,6,9-trimethyl-6H-dibenzo[b,d]pyranPhytoBank
CBNPhytoBank
Chemical FormulaC21H26O2
Average Mass310.4370 Da
Monoisotopic Mass310.19328 Da
IUPAC Name6,6,9-trimethyl-3-pentyl-6H-benzo[c]chromen-1-ol
Traditional Namecannabinol
CAS Registry Number521-35-7
SMILES
CCCCCC1=CC(O)=C2C(OC(C)(C)C3=C2C=C(C)C=C3)=C1
InChI Identifier
InChI=1S/C21H26O2/c1-5-6-7-8-15-12-18(22)20-16-11-14(2)9-10-17(16)21(3,4)23-19(20)13-15/h9-13,22H,5-8H2,1-4H3
InChI KeyVBGLYOIFKLUMQG-UHFFFAOYSA-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
Cannabis sativaNULL
      Not Available
Chemical Taxonomy
Description Belongs to the class of organic compounds known as dibenzopyrans. These are organic heterocyclic compounds with a structure containing a dibenzopyran moiety, made up of two benzene rings fused to a central pyran ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzopyrans
Sub Class1-benzopyrans
Direct ParentDibenzopyrans
Alternative Parents
Substituents
  • Dibenzopyran
  • 2-benzopyran
  • 1-hydroxy-4-unsubstituted benzenoid
  • 1-hydroxy-2-unsubstituted benzenoid
  • Alkyl aryl ether
  • Benzenoid
  • Oxacycle
  • Ether
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic 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
logP6.58ALOGPS
logP6.41ChemAxon
logS-6ALOGPS
pKa (Strongest Acidic)9.32ChemAxon
pKa (Strongest Basic)-4.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area29.46 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity95.74 m³·mol⁻¹ChemAxon
Polarizability37.75 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDC07580
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkCannabinol
METLIN IDNot Available
PubChem Compound2543
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General References
  1. McCallum ND, Yagen B, Levy S, Mechoulam R: Cannabinol: a rapidly formed metabolite of delta-1- and delta-6-tetrahydrocannabinol. Experientia. 1975 May 15;31(5):520-1. doi: 10.1007/BF01932433. [PubMed:1140243 ]
  2. Karniol IG, Shirakawa I, Takahashi RN, Knobel E, Musty RE: Effects of delta9-tetrahydrocannabinol and cannabinol in man. Pharmacology. 1975;13(6):502-12. doi: 10.1159/000136944. [PubMed:1221432 ]
  3. Mahadevan A, Siegel C, Martin BR, Abood ME, Beletskaya I, Razdan RK: Novel cannabinol probes for CB1 and CB2 cannabinoid receptors. J Med Chem. 2000 Oct 5;43(20):3778-85. doi: 10.1021/jm0001572. [PubMed:11020293 ]
  4. Petitet F, Jeantaud B, Reibaud M, Imperato A, Dubroeucq MC: Complex pharmacology of natural cannabinoids: evidence for partial agonist activity of delta9-tetrahydrocannabinol and antagonist activity of cannabidiol on rat brain cannabinoid receptors. Life Sci. 1998;63(1):PL1-6. doi: 10.1016/s0024-3205(98)00238-0. [PubMed:9667767 ]