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Molecule
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
Identifiers
CAS Registry Number
2022-85-7
SMILES
N=c1[nH]c(O)ncc1F
InChI Key
XRECTZIEBJDKEO-UHFFFAOYSA-N
InChI
InChI=1S/C4H4FN3O/c5-2-1-7-4(9)8-3(2)6/h1H,(H3,6,7,8,9)
Names and Synonyms
- Flucytosine Synonym
- 2(1H)-Pyrimidinone, 4-amino-5-fluoro- Synonym
- Cytosine, 5-fluoro- Synonym
- 2(1H)-Pyrimidinone, 6-amino-5-fluoro- Synonym
- 6-Amino-5-fluoro-2(1H)-pyrimidinone Synonym
- 5-Fluorocytosine Synonym
- Flucytosine Synonym
- 4-Amino-5-fluoropyrimidin-2(1H)-one Synonym
- 5-Fluorocytosin Synonym
- Flucytosin Synonym
- Ro 2-9915 Synonym
- Fluocytosine Synonym
- Ancobon Synonym
- Fluorocytosine Synonym
- Ancotyl Synonym
- Ancotil Synonym
- 6-Amino-2-oxo-5-fluoropyrimidine Synonym
- Alcobon Synonym
- NSC 103805 Synonym
- 4-Amino-5-fluoropyrimidin-2-ol Synonym
- Toca FC Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 129.09 g/mol | CAS Common Chemistry |
| 129.094 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 |
| -0.2661 | RDKit | |
| Molar Refractivity | 26.065200000000004 cm³/mol | RDKit |
| Ring Count | 1 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 0.0 | RDKit |
| Exact Mass | 129.033839968 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
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
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MW = 129.09 g/mol. Edit any field — others recompute live.
