2-(2,5-Difluorophenyl)-2,2-difluoroacetic acid CAS 1339922-71-2
| CAS No. | 1339922-71-2 |
| Molecular Formula | C8H4F4O2 |
| Molecular Weight | 208.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-(2,5-Difluorophenyl)-2,2-difluoroacetic acid 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.
2-(2,5-Difluorophenyl)-2,2-difluoroacetic acid (CAS 1339922-71-2) is a high-purity analytical reference standard with the molecular formula C8H4F4O2 and a molecular weight of 208.11 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 2-(2,5-Difluorophenyl)-2,2-difluoroacetic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.11 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 | C8H4F4O2 |
| Molecular Weight | 208.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1991 |
| Halogen Content | F-containing |
Related Difluorophenyl Standards
- 2-(2,4-Difluorophenyl)-2,2-difluoroacetic acid (CAS 1339147-37-3)
- 2-(2,6-Difluorophenyl)-2,2-difluoroacetic acid (CAS 1344264-52-3)
- 2-(3,4-Difluorophenyl)-2,2-difluoroacetic Acid (CAS 915030-48-7)
- 2-(3,5-Difluorophenyl)-2,2-difluoroacetic acid (CAS 208259-48-7)
- 5-(2,6-difluorophenyl)furan-2-carbaldehyde (CAS 1094399-13-9)
- 6-(2,4-Difluorophenyl)pyridazin-3-ol (CAS 1105194-20-4)
- 5-(2,3-Difluorophenyl)pyrimidin-2-ol (CAS 1111103-65-1)
- 5-(2,4-Difluorophenyl)pyrimidin-4-ol (CAS 1111107-55-1)
Recommended Standards
- 2,3,4,6-Tetrafluorophenylacetic Acid (CAS 1214373-68-8)
- 3-Fluoro-5-(trifluoromethoxy)benzaldehyde (CAS 1352999-98-4)
- 2-Fluoro-3-(trifluoromethoxy)benzaldehyde (CAS 1159512-58-9)
- 2-Fluoro-6-(trifluoromethoxy)benzaldehyde (CAS 1369504-59-5)
- (3aR,8aR)-6-Hydroxy-2,2-dimethyl-4,4,8,8-tetraphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine 6-oxide (CAS 945763-92-8)
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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