4-(2-Chlorophenoxy)-5,6-difluoropyrimidine CAS 193741-72-9
| CAS No. | 193741-72-9 |
| Molecular Formula | C10H5ClF2N2O |
| Molecular Weight | 242.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-(2-Chlorophenoxy)-5,6-difluoropyrimidine (CAS 193741-72-9), molecular formula C10H5ClF2N2O and molecular weight 242.61 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 4-(2-Chlorophenoxy)-5,6-difluoropyrimidine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 242.61 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H5ClF2N2O |
| Molecular Weight | 242.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2012 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenoxy Standards
- 2-(2-Acetyl-4-chlorophenoxy)propanoic acid (CAS 1250300-24-3)
- 6-(2-Chlorophenoxy)hexanoic acid (CAS 7170-48-1)
- 6-(3-Chlorophenoxy)hexanoic acid (CAS 7305-70-6)
- Ethyl 2-(2-chlorophenoxy)-2-methylpropanoate (CAS 59227-81-5)
- Ethyl 4-(4-chlorophenoxy)butanoate (CAS 59227-79-1)
- 3-(4-Chlorophenoxy)-N,N-diethylpropan-1-amine (CAS 415722-40-6)
- 1-(2-(2-Chlorophenoxy)ethyl)pyrrolidin-3-ol (CAS 1342564-28-6)
- 6-(4-chlorophenoxy)hexanamide (CAS 1803587-03-2)
Recommended Standards
- 2-Chloro-5-fluoro-4-(2-fluorophenoxy)pyrimidine (CAS 1522312-61-3)
- 2-Chloro-5-fluoro-4-(4-fluorophenoxy)pyrimidine (CAS 923764-31-2)
- 2-Chloro-5-fluoro-4-(3-fluorophenoxy)pyrimidine (CAS 1511255-82-5)
- 3-Chloro-6-(2,4-difluorophenoxy)pyridazine (CAS 353258-85-2)
- 6-Bromo-8-chloro-3-ethyl-[1,2,4]triazolo[4,3-a]pyrazine (CAS 2091299-25-9)
- 2-((3,5-Dimethylphenyl)amino)-2-thioxoacetamide (CAS 328961-28-0)
- 7-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-1-amine (CAS 1210048-27-3)
- 4,4'-Diacetylbiphenyl (CAS 787-69-9)
- 2-Methoxy-5-(4-(pyrrolidin-1-ylsulfonyl)phenyl)nicotinic acid (CAS 1261992-43-1)
- 3-{benzyl[(thiophen-2-yl)methyl]amino}-1,1,1-trifluoropropan-2-ol (CAS 477864-34-9)
- Dicyclohexyl(2′,4′,6′-trimethyl[1,1′:3′,1′′-terphenyl]-2-yl)phosphine (CAS 1668597-90-7)
- 3-Hydroxy-4-iodopyridine HCl (CAS 2056110-57-5)
- 1-(4-Aminophenyl)-N-(tert-butyl)methanesulfonamide (CAS 179028-78-5)
- (Ser(PO3H2)202,Thr(PO3H2)205)-Tau Peptide (194-213) trifluoroacetate salt (CAS 2022956-55-2)
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