Metabolomics Structure Database

MDLMOL SDF CSV TSV

MW REGNO:	37339
Common Name:	Cytosine
Systematic Name:	6-amino-1,2-dihydropyrimidin-2-one
RefMet Name:	Cytosine
Synonyms:	[PubChem Synonyms]
Exact Mass:	111.0433 (neutral)    Calculate m/z: (Choose adduct) [M+H]+ [M+H-H2O]+ [M.]+ [M+2H]2+ [M+3H]3+ [M+4H]4+ [M+K]+ [M+2K]2+ [M-H+2K]+ [M+Na]+ [M+2Na]2+ [M-H+2Na]+ [M+Li]+ [M+2Li]2+ [M+NH4]+ [M-H]- [M-2H]2- [M-3H]3- [M-4H]4- [M+Cl]- [M+OAc]- [M+HCOO]- M(neutral)
Formula:	C4H5N3O
InChIKey:	OPTASPLRGRRNAP-UHFFFAOYSA-N
ClassyFire superclass:	Organoheterocyclic compounds [C0000002]
ClassyFire class:	Diazines [C0001346]
ClassyFire subclass:	Pyrimidines and pyrimidine derivatives [C0000075]
ClassyFire direct parent:	Pyrimidones [C0000291]
Massbank MS spectra:	View MS spectra
NP-MRD NMR spectra:	View NMR spectra
SMILES:	c1c[nH]c(=O)nc1N
Studies:	Available studies (via RefMet name)

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All Database Links Calculated Properties Human Pathways

Calculated physicochemical properties (?):

Heavy Atoms:	8
Rings:	1
Aromatic Rings:	1
Rotatable Bonds:	0
van der Waals Molecular volume:	88.37 Å3 molecule-1
Toplogical Polar Sufrace Area:	71.77 Å2 molecule-1
Hydrogen Bond Donors:	2
Hydrogen Bond Acceptors:	2
logP:	0.10
Molar Refractivity:	29.31
Fraction sp3 Carbons:	0.00
sp3 Carbons:	0

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