5-Fluoro-1-methylpyrimidin-2(1H)-one CAS 63331-05-5
| CAS No. | 63331-05-5 |
| Molecular Formula | C5H5FN2O |
| Molecular Weight | 128.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-Fluoro-1-methylpyrimidin-2(1H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
5-Fluoro-1-methylpyrimidin-2(1H)-one (CAS 63331-05-5) is a high-purity analytical reference standard with the molecular formula C5H5FN2O and a molecular weight of 128.10 g/mol.
Structurally, 5-Fluoro-1-methylpyrimidin-2(1H)-one (C5H5FN2O) contains an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 128.10 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C5H5FN2O |
| Molecular Weight | 128.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluoro Standards
- 5-Fluoro-4-methoxypyrimidine (CAS 120258-30-2)
- 5-Fluoro-2-(hydroxymethyl)pyrimidine (CAS 1227574-72-2)
- 2-Fluoro-3-methoxypyrazine (CAS 1261489-99-9)
- 4-fluoro-5-methylfuran-2-carbaldehyde (CAS 1368383-51-0)
- 4-fluoro-5-methylfuran-3-carbaldehyde (CAS 1369383-36-7)
- 5-Fluoro-2-methylpyrimidin-4-ol (CAS 1480-91-7)
- 2-Fluoro-1-(1H-imidazol-1-yl)ethanone (CAS 161468-13-9)
- 3-Fluoro-1-methyl-1H-pyrazole-4-carbaldehyde (CAS 1934527-90-8)
Recommended Standards
- 5-(Fluoromethyl)furan-2-carbaldehyde (CAS 94043-06-8)
- 5-Fluoro-1-methylpyrimidin-4(1H)-one (CAS 347418-37-5)
- 4-Fluorocatechol (CAS 367-32-8)
- 5-Fluoro-3-methylpyrimidin-4(3H)-one (CAS 347418-38-6)
- tert-Butyl 10-methoxy-2,7-diazaspiro[4.5]decane-7-carboxylate (CAS 1889292-38-9)
- Tert-butyl 8-(2-ethoxy-2-oxoethyl)-3-azabicyclo[3.2.1]Octane-3-carboxylate (CAS 1474018-03-5)
- 5-Ethyl-3-hydroxy-2-(((2-(naphthalen-1-yloxy)-5-(trifluoromethyl)phenyl)imino)methyl)cyclohex-2-en-1-one (CAS 1024259-71-9)
- Ethyl 5-oxo-5-(3-(trifluoromethyl)phenyl)pentanoate (CAS 898777-75-8)
- Om-189 (CAS 55381-18-5)
- Ethyl 6-Morpholinopyridine-2-carboxylate (CAS 1061750-15-9)
- (1R,2S,3S)-Eldecalcitol (CAS 357332-33-3)
- 5-(But-3-yn-1-ylamino)furan-2-carboxylic acid (CAS 1342080-74-3)
- 3-(2-(1,3-Dioxolan-2-yl)ethoxy)benzaldehyde (CAS 1443332-66-8)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com