| CAS No. | 1883545-47-8 |
| Molecular Formula | C23H21N5O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
(R)-7-(3,5-Dimethylisoxazol-4-yl)-8-methoxy-1-(1-(pyridin-2-yl)ethyl)-1,3-dihydro-2H-imidazo[4,5-c]quinolin-2-one dihydroChloride (CAS 1883545-47-8), molecular formula C23H21N5O3HCl and molecular weight 451.91 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (R)-7-(3,5-Dimethylisoxazol-4-yl)-8-methoxy-1-(1-(pyridin-2-yl)ethyl)-1,3-dihydro-2H-imidazo[4,5-c]quinolin-2-one dihydroChloride (C23H21N5O3HCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 451.91 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), (R)-7-(3,5-Dimethylisoxazol-4-yl)-8-methoxy-1-(1-(pyridin-2-yl)ethyl)-1,3-dihydro-2H-imidazo[4,5-c]quinolin-2-one dihydroChloride 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 | C23H21N5O3 2*HCl |
| Molecular Weight | 451.91 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |