4-Difluoromethoxy-2-fluoro-5-formylpyridine CAS 1803729-36-3
| CAS No. | 1803729-36-3 |
| Molecular Formula | C7H4F3NO2 |
| Molecular Weight | 191.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Difluoromethoxy-2-fluoro-5-formylpyridine 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.
4-Difluoromethoxy-2-fluoro-5-formylpyridine (CAS 1803729-36-3) is a high-purity analytical reference standard with the molecular formula C7H4F3NO2 and a molecular weight of 191.11 g/mol.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 4-Difluoromethoxy-2-fluoro-5-formylpyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 191.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H4F3NO2 |
| Molecular Weight | 191.11 g/mol |
| Appearance | Off-white to pale 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoromethoxy Standards
- 3-Difluoromethoxy-6-fluoro-2-formylpyridine (CAS 1803808-74-3)
- 4-(Difluoromethoxy)-3-fluoropicolinaldehyde (CAS 1803838-22-3)
- 2-Difluoromethoxy-3-fluoro-4-formylpyridine (CAS 1803848-21-6)
- 3-Difluoromethoxy-2-fluoro-5-formylpyridine (CAS 1804418-64-1)
- 5-Difluoromethoxy-3-fluoro-2-formylpyridine (CAS 1804418-75-4)
- 2-Difluoromethoxy-3-fluoro-5-formylpyridine (CAS 1806274-88-3)
- 2-Difluoromethoxy-6-fluoro-3-formylpyridine (CAS 1806275-20-6)
- 5-Difluoromethoxy-2-fluoro-3-formylpyridine (CAS 1806275-28-4)
Recommended Standards
- 5-(Difluoromethyl)-2-fluoronicotinic acid (CAS 1803666-15-0)
- 6-(Difluoromethyl)-5-fluoropicolinic acid (CAS 1803666-08-1)
- 2-Cyclohexylbromoethane (CAS 1647-26-3)
- Bromocyclooctane (CAS 1556-09-8)
- (2-Bromo-4-ethoxyphenyl)methanol (CAS 1427079-86-4)
- 1-Benzyl-3-[(4-chlorophenyl)methyl]-4-hydroxy-1,2-dihydropyridin-2-one (CAS 477846-41-6)
- 5-Bromo-1-(o-tolyl)-1H-pyrazole-4-carboxylic acid (CAS 1399663-70-7)
- 3-(2,5-Difluorophenyl)-2-methylquinazolin-4(3H)-one (CAS 256955-23-4)
- 2-Amino-n,n-diethyl-5-methylbenzene-1-sulfonamide (CAS 379254-18-9)
- 5-Amino-4-cyclopropoxypicolinic acid (CAS 1243362-63-1)
- 2-Amino-5-bromoisonicotinonitrile (CAS 944401-72-3)
- 3-ethoxy-2-methylpropane-1-sulfonyl chloride (CAS 1340100-87-9)
- ((2S,3S)-2-methylmorpholin-3-yl)methanol (CAS 1881275-86-0)
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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