| CAS No. | 321522-21-8 |
| Molecular Formula | C20H13F6N5O |
| Molecular Weight | 453.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 453.34 g/mol gives 1-[5,7-Bis(trifluoromethyl)-1,8-naphthyridin-2-yl]-4-(4-methoxyphenyl)-1H-pyrazol-5-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1-[5,7-Bis(trifluoromethyl)-1,8-naphthyridin-2-yl]-4-(4-methoxyphenyl)-1H-pyrazol-5-amine (CAS 321522-21-8), a certified reference material (molecular formula C20H13F6N5O, MW 453.34 g/mol) for analytical method development and quality control.
Structurally, 1-[5,7-Bis(trifluoromethyl)-1,8-naphthyridin-2-yl]-4-(4-methoxyphenyl)-1H-pyrazol-5-amine (C20H13F6N5O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 453.34 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C20H13F6N5O |
| Molecular Weight | 453.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 5 |