Record Information
Creation date2010-04-08 22:15:29 UTC
Update date2018-01-23 20:16:32 UTC
Primary IDFDB021135
Secondary Accession Numbers
  • FDB013225
Chemical Information
FooDB NameCucurbitacide E
DescriptionGlycoside from leaves and fruit of Cucumis sativus (cucumber). Cucurbitacide E is found in cucumber and green vegetables.
CAS Number3877-86-9
Cucurbitacine (D)HMDB
Elatericin aHMDB
Elatericine aHMDB
23,24-Dihydro-cucurbitacin DMeSH
Cucurbitacin DMeSH
Cucurbitacide Edb_source
Predicted Properties
Water Solubility0.025 g/LALOGPS
pKa (Strongest Acidic)12.8ChemAxon
pKa (Strongest Basic)-2.8ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area132.13 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity141.89 m³·mol⁻¹ChemAxon
Polarizability57.64 ųChemAxon
Number of Rings4ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC30H44O7
IUPAC name14-[(4E)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-4,13-dihydroxy-1,6,6,11,15-pentamethyltetracyclo[²,⁷.0¹¹,¹⁵]heptadec-7-ene-5,17-dione
InChI IdentifierInChI=1S/C30H44O7/c1-25(2,36)12-11-21(33)30(8,37)23-19(32)14-27(5)20-10-9-16-17(13-18(31)24(35)26(16,3)4)29(20,7)22(34)15-28(23,27)6/h9,11-12,17-20,23,31-32,36-37H,10,13-15H2,1-8H3/b12-11+
Isomeric SMILESCC(C)(O)\C=C\C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C
Average Molecular Weight516.6662
Monoisotopic Molecular Weight516.308703762
Description belongs to the class of organic compounds known as cucurbitacins. These are polycyclic compounds containing the tetracyclic cucurbitane nucleus skeleton, 19-(10->9b)-abeo-10alanost-5-ene (also known as 9b-methyl-19-nor lanosta-5-ene), with a variety of oxygenation functionalities at different positions.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassCucurbitacins
Direct ParentCucurbitacins
Alternative Parents
  • Cucurbitacin skeleton
  • Triterpenoid
  • 25-hydroxysteroid
  • 22-oxosteroid
  • 21-oxosteroid
  • 20-hydroxysteroid
  • 3-oxo-delta-5-steroid
  • 2-hydroxysteroid
  • 3-oxosteroid
  • Hydroxysteroid
  • 11-oxosteroid
  • Oxosteroid
  • 16-hydroxysteroid
  • Delta-5-steroid
  • Acyloin
  • Acryloyl-group
  • Alpha,beta-unsaturated ketone
  • Enone
  • Alpha-hydroxy ketone
  • Tertiary alcohol
  • Cyclic alcohol
  • Cyclic ketone
  • Secondary alcohol
  • Ketone
  • Organic oxide
  • Alcohol
  • Organic oxygen compound
  • Carbonyl group
  • Organooxygen compound
  • Hydrocarbon derivative
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External DescriptorsNot Available
OntologyShould have ontology for this compound
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionC 58.01%; H 7.46%; O 34.53%DFC
Melting PointMp 158-160°DFC
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
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0udi-2203920000-313542718d1a47804651View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-0002-1102019000-fd1275dbc427cd0de224View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000t-0001910000-a64a24f594c3d1241987View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-001i-1204900000-7126fe9f002d2651f753View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001i-3139700000-7e34ad54867747ba290dView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-066r-2901580000-9c731b728e47c61e945dView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-2903100000-2eeffae45ef3a0281d3fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4l-3109200000-794f4dd1592bf02054f3View in MoNA
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) IDJDV65-L:NMJ17-T
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET 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
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
MSDSNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference