4,5-Difluoro-2-(trifluoromethyl)benzoic acid CAS 261945-13-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 261945-13-5 |
| Molecular Formula | C8H3F5O2 |
| Molecular Weight | 226.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,5-Difluoro-2-(trifluoromethyl)benzoic acid (CAS 261945-13-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H3F5O2. Molecular weight: 226.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H3F5O2 |
| Molecular Weight | 226.10 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.) | 2025 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 2,6-Difluoro-3-(trifluoromethyl)benzoic acid (CAS 1048921-49-8)
- 3,6-Difluoro-2-(trifluoromethyl)benzoic acid (CAS 111595-72-3)
- 2,5-Difluoro-3-(trifluoromethyl)benzoic acid (CAS 1186195-28-7)
- 2,6-Difluoro-4-(trifluoromethyl)benzoic acid (CAS 1309597-24-7)
- 2,4-Difluoro-3-(trifluoromethyl)benzoic acid (CAS 157337-81-0)
- 2,6-Difluoro-4-(trifluoromethoxy)benzaldehyde (CAS 1799439-11-4)
- 2,3-Difluoro-4-(trifluoromethoxy)benzaldehyde (CAS 2244086-99-3)
- 2,3-Difluoro-4-(trifluoromethyl)benzoic acid (CAS 237424-17-8)
Recommended Standards
- 4,5-Dichloro-2,8-dimethylquinoline (CAS 21629-52-7)
- 4,6-Dichloro-2,8-dimethylquinoline (CAS 21629-51-6)
- 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-amine (CAS 2096335-44-1)
- 4-Nitrobenzo[c][1,2,5]oxadiazol-5-amine (CAS 18333-71-6)
- 3-(Chloromethyl)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine (CAS 1706433-42-2)
- Timolol Impurity 21 (CAS CATO-C4X-149621)
- 3-Bromo-5,7-dichloro-1-methyl-1H-pyrazolo[4,3-d]pyrimidine (CAS 1033444-08-4)
- (E)-(1-Bromo-2-phenylbut-1-en-1-yl)trimethylsilane 96212-84-9 (CAS 96212-84-9)
- Ondansetron Impurity 24 (CAS CATO-C4X-139424)
- D-allo-Thr5-Semaglutide (CAS CATO-C4X-2226243)
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