3-Chloro-2,6-difluoropyridine CAS 52208-56-7
| CAS No. | 52208-56-7 |
| Molecular Formula | C5H2ClF2N |
| Molecular Weight | 149.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Chloro-2,6-difluoropyridine (CAS 52208-56-7) is a high-purity analytical reference standard with the molecular formula C5H2ClF2N and a molecular weight of 149.53 g/mol.
Structurally, 3-Chloro-2,6-difluoropyridine (C5H2ClF2N) contains a nitrile group, fluorine/chlorine 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 149.53 g/mol, it falls into the low-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H2ClF2N |
| Molecular Weight | 149.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| 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.) | 1971 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 6-Chloro-2,3-difluoropyridine (CAS 1214327-63-5)
- 2-Chloro-3,4-difluoropyridine (CAS 1227502-41-1)
- 2-Chloro-3,6-difluoropyridine (CAS 1807031-39-5)
- 5-Chloro-2,4-difluoropyridine (CAS 1807257-52-8)
- 2-Chloro-4,5-difluoropyridine (CAS 511522-70-6)
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- 3-Chloro-2,4-difluoropyridine (CAS 851179-01-6)
- 3-Chloro-2,5-difluoropyridine (CAS 851179-00-5)
Recommended Standards
- 3-Chloro-4,5-difluoropyridine (CAS 851178-98-8)
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- 2-Oxo-3-oxazolidinecarbonyl chloride (CAS 66313-48-2)
- 4-chloro-2,3-difluoro-pyridine (CAS 851178-99-9)
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- (4-Methylpyridazin-3-yl)methanol (CAS 1956328-36-1)
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- [(1R,3S,4S)-5,5-Difluorodispiro[2.0.2.1]Hept-1-Yl]Methanol (CAS 321857-34-5)
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- Tavaborole Impurity 4 (CAS 174671-88-6)
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- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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