4-(2,5-Difluorophenyl)-2-fluorophenol CAS 1261995-92-9
| CAS No. | 1261995-92-9 |
| Molecular Formula | C12H7F3O |
| Molecular Weight | 224.18 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.
4-(2,5-Difluorophenyl)-2-fluorophenol (CAS 1261995-92-9), molecular formula C12H7F3O and molecular weight 224.18 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(2,5-Difluorophenyl)-2-fluorophenol (C12H7F3O) contains a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 224.18 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C12H7F3O |
| Molecular Weight | 224.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
Related Difluorophenyl Standards
- 4-(2,3-Difluorophenyl)-2-fluorophenol (CAS 1261765-47-2)
- 4-(3,5-Difluorophenyl)-2-fluorophenol (CAS 1261950-48-4)
- (3,4-Difluorophenyl)(5-methylfuran-2-yl)methanol (CAS 1250381-15-7)
- (3,5-Difluorophenyl)(5-methylfuran-2-yl)methanol (CAS 1343189-28-5)
- 5-(2,3-Difluorophenyl)cyclohexane-1,3-dione (CAS 1503065-06-2)
- 3-(3,5-Difluorophenyl)bicyclo[1.1.1]Pentane-1-carboxylic acid (CAS 2167122-34-9)
- 5-(3,5-Difluorophenyl)cyclohexane-1,3-dione (CAS 928710-55-8)
- 3-(3,4-Difluorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 1038550-27-4)
Recommended Standards
- 6-(2,3,4-Trifluorophenyl)pyridin-2-amine (CAS 1339700-84-3)
- 1-(Prop-2-yn-1-yl)-2-(trifluoromethyl)-1h-1,3-benzodiazole (CAS 139591-04-1)
- 1-(Trifluoromethyl)naphthalene-7-carboxaldehyde (CAS 1261733-21-4)
- 4-(Difluoromethoxy)benzenesulfonic acid (CAS 142739-04-6)
- Surfen (CAS 5424-37-3)
- 4-Chloro-N-(cyclopropylmethyl)aniline hydrochloride (CAS 1785761-10-5)
- Methyl 2-(3,4-difluorophenyl)propanoate (CAS 1342018-92-1)
- N-(Acetyl) Duloxetine (CAS 1243540-90-0)
- 4-(3-(4-Chlorophenyl)-1H-pyrazol-5-yl)-1-(4-methylbenzyl)piperidine (CAS 156336-84-4)
- 7-Bromo-1-nitronaphthalene (CAS 102153-49-1)
- (R)-2-amino-2-methyl-3-(4-(trifluoromethoxy)phenyl)propanoic acid (CAS 1269835-58-6)
- 8-[2-Chloro-4-(methylthio)phenyl]-8-oxooctanoic acid (CAS 951891-25-1)
- N-[3-(aminomethyl)phenyl]-3-methylbutanamide (CAS 918810-73-8)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
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