4-chloro-2,3-difluoro-pyridine CAS 851178-99-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 851178-99-9 |
| Molecular Formula | C5H2ClF2N |
| Molecular Weight | 149.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 4-chloro-2,3-difluoro-pyridine (CAS 851178-99-9) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C5H2ClF2N. Molecular weight: 149.53 g/mol. COA included with every batch.
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.) | 1987 |
| 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)
- 2-Chloro-4,6-difluoropyridine (CAS 34941-89-4)
- 3-Chloro-2,4-difluoropyridine (CAS 851179-01-6)
- 3-Chloro-2,5-difluoropyridine (CAS 851179-00-5)
Recommended Standards
- 4-(Chloromethyl)-2,5-oxazolidinedione (CAS 3981-41-7)
- 4-Chloro-2,5-difluoropyridine (CAS 851386-40-8)
- 3-Chloro-4,5-difluoropyridine (CAS 851178-98-8)
- 2,2-Dichloro-2-fluoroacetic acid (CAS 354-19-8)
- Desmethyl Norflurazon (CAS 23576-24-1)
- 1-(1-(tert-Butyl)azetidin-3-yl)-4-(p-tolyl)piperazine (CAS 223381-88-2)
- 5-Fluoro-1-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-indazole (CAS 2377610-46-1)
- (2-Bromo-5-chloro-6-(difluoromethyl)pyridin-3-yl)methanol (CAS 1806034-02-5)
- (R)-2-Amino-3-(dimethylamino)propanoic acid (CAS 206559-98-0)
- [a-Glu](Side chain transposition)- Semaglutide (CAS CATO-C4X-2226111)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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