| CAS No. | 2227259-30-3 |
| Molecular Formula | C20H23F2N7O |
| Molecular Weight | 415.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Based on its molecular formula C20H23F2N7O, (19E)-4,17-difluoro-1,5,8,13,15,22,27-heptaazatetracyclo[20.2.2.1¹⁰,¹⁴.0²,⁷]heptacosa-2,4,6,10,12,14,19-heptaen-9-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 415.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
(19E)-4,17-difluoro-1,5,8,13,15,22,27-heptaazatetracyclo[20.2.2.1¹⁰,¹⁴.0²,⁷]heptacosa-2,4,6,10,12,14,19-heptaen-9-one (CAS 2227259-30-3), molecular formula C20H23F2N7O and molecular weight 415.44 g/mol, is a CATO reference standard with documented purity and traceability.
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), (19E)-4,17-difluoro-1,5,8,13,15,22,27-heptaazatetracyclo[20.2.2.1¹⁰,¹⁴.0²,⁷]heptacosa-2,4,6,10,12,14,19-heptaen-9-one 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 | C20H23F2N7O |
| Molecular Weight | 415.44 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 7 |