| CAS No. | 94157-91-2 |
| Molecular Formula | C18H12F8N2O3 |
| Molecular Weight | 456.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,6-Difluoro-N-[[[2-Methyl-4-[2,2,2-Trifluoro-1-Hydroxy-1-(Trifluoromethyl)Ethyl]Phenyl]Amino]Carbonyl]Benzamide.
2,6-Difluoro-N-[[[2-Methyl-4-[2,2,2-Trifluoro-1-Hydroxy-1-(Trifluoromethyl)Ethyl]Phenyl]Amino]Carbonyl]Benzamide (CAS 94157-91-2), molecular formula C18H12F8N2O3 and molecular weight 456.29 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,6-Difluoro-N-[[[2-Methyl-4-[2,2,2-Trifluoro-1-Hydroxy-1-(Trifluoromethyl)Ethyl]Phenyl]Amino]Carbonyl]Benzamide (C18H12F8N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 456.29 g/mol, it falls into the moderately-high-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.
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.
| Molecular Formula | C18H12F8N2O3 |
| Molecular Weight | 456.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |