Metabolomics Structure Database

 
MW REGNO: 34412
Common Name:Cucurbitacin E
Systematic Name:[(E,6R)-6-[(8S,9R,10R,13R,14S,16R,17R)-2,16-dihydroxy-4,4,9,13,14-pentamethyl-3,11-dioxo-8,10,12,15,16,17-hexahydro-7H-cyclopenta[a]phenanthren-17-yl]-6-hydroxy-2-methyl-5-oxohept-3-en-2-yl] acetate
RefMet Name:Cucurbitacin E
Synonyms: [PubChem Synonyms]
Exact Mass:
556.3036 (neutral)    Calculate m/z:
Formula:C32H44O8
InChIKey:NDYMQXYDSVBNLL-MUYMLXPFSA-N
LIPID MAPS Category:Sterol Lipids [ST]
LIPID MAPS mainclass:Sterols [ST01]
LIPID MAPS subclass:Cholesterol and derivatives [ST0101]
SMILES:CC(=O)OC(C)(C)/C=C/C(=O)[C@@](C)([C@H]1[C@@H](C[C@@]2(C)[C@@H]3CC=C4[C@@H](C=C(C(=O)C4(C)C)O)[C@]3(C)C(=O)C[C@]12C)O)O
Studies:Available studies (via RefMet name)

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External database links:

PubChem CID:5281319
LIPID MAPS ID:LMST01010107
CHEBI ID:3944
HMDB ID:HMDB0250581
KEGG ID:C08797
Plant Metabolite Hub(Pmhub):MS000016263

Calculated physicochemical properties (?):

Heavy Atoms: 40  
Rings: 4  
Aromatic Rings: 0  
Rotatable Bonds: 6  
van der Waals Molecular volume: 564.56 Å3 molecule-1  
Toplogical Polar Sufrace Area: 138.20 Å2 molecule-1  
Hydrogen Bond Donors: 3  
Hydrogen Bond Acceptors: 8  
logP: 5.05  
Molar Refractivity: 149.39  
Fraction sp3 Carbons: 0.69  
sp3 Carbons: 22  

Human Pathway links:

REACTOME pathways containing this metabolite

References

LIPID MAPS classification: "Update of the LIPID MAPS comprehensive classification system for lipids", Fahy E, Subramaniam S, Murphy RC, Nishijima M, Raetz CR, Shimizu T, Spener F, van Meer G, Wakelam MJ, and Dennis EA, J. Lipid Res. (2009) 50: S9-S14. DOI: 10.1194/jlr.R800095-JLR200
ClassyFire classification: "ClassyFire: automated chemical classification with a comprehensive, computable taxonomy", Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS, J. Cheminformatics (2016) 8:61. DOI: 10.1186/s13321-016-0174-y

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