| CAS No. | 338410-11-0 |
| Molecular Formula | C26H20Cl2F4N6O2 |
| Molecular Weight | 595.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
1-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](methyl)amino}-5-[(1E)-1-[2-(4-chlorophenyl)hydrazin-1-ylidene]ethyl]-3-[(4-fluorophenyl)methyl]-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 338410-11-0), molecular formula C26H20Cl2F4N6O2 and molecular weight 595.38 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](methyl)amino}-5-[(1E)-1-[2-(4-chlorophenyl)hydrazin-1-ylidene]ethyl]-3-[(4-fluorophenyl)methyl]-1,2,3,4-tetrahydropyrimidine-2,4-dione (C26H20Cl2F4N6O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 595.38 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 1-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](methyl)amino}-5-[(1E)-1-[2-(4-chlorophenyl)hydrazin-1-ylidene]ethyl]-3-[(4-fluorophenyl)methyl]-1,2,3,4-tetrahydropyrimidine-2,4-dione meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C26H20Cl2F4N6O2 |
| Molecular Weight | 595.38 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 6 |