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Flucytosine

CAS: 2022-85-7 | C4H4FN3O

2D Structure

3D Structure

Loading 3D structure...

Basic Information

CAS Registry Number: 2022-85-7
Molecular Formula: C4H4FN3O
Molecular Mass: 129.09 g/mol

Names and Synonyms:

Flucytosine
2(1H)-Pyrimidinone, 4-amino-5-fluoro-
Cytosine, 5-fluoro-
2(1H)-Pyrimidinone, 6-amino-5-fluoro-
6-Amino-5-fluoro-2(1H)-pyrimidinone
5-Fluorocytosine
Flucytosine
4-Amino-5-fluoropyrimidin-2(1H)-one
5-Fluorocytosin
Flucytosin
Ro 2-9915
Fluocytosine
Ancobon
Fluorocytosine
Ancotyl
Ancotil
6-Amino-2-oxo-5-fluoropyrimidine
Alcobon
NSC 103805
4-Amino-5-fluoropyrimidin-2-ol
Toca FC

Identifiers:

SMILES:
N=c1[nH]c(O)ncc1F
InChI:
InChI=1S/C4H4FN3O/c5-2-1-7-4(9)8-3(2)6/h1H,(H3,6,7,8,9)

Key Properties

Melting Point
295-297 °C (decomp) CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 129.09 g/mol CAS Common Chemistry
129.094 g/mol RDKit
129.033839968 g/mol RDKit
Canonical SMILES O=C1N=CC(F)=C(N)N1 CAS Common Chemistry
InChI InChI=1S/C4H4FN3O/c5-2-1-7-4(9)8-3(2)6/h1H,(H3,6,7,8,9) CAS Common Chemistry
InChI Key InChIKey=XRECTZIEBJDKEO-UHFFFAOYSA-N CAS Common Chemistry
Melting Point 295-297 °C (decomp) CAS Common Chemistry
Name Flucytosine CAS Common Chemistry
Heavy Atom Count 9 RDKit
Hydrogen Bond Acceptors 3 RDKit
Hydrogen Bond Donors 3 RDKit
Rotatable Bonds 0 RDKit
Aromatic Ring Count 1 RDKit
Topological Polar Surface Area 72.76 Ų RDKit
LogP -0.26613000000000003 RDKit
Molar Refractivity 26.065200000000004 RDKit

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