| CAS No. | 97416-80-3 |
| Molecular Formula | C25H15ClN2OS |
| Molecular Weight | 426.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-((4-Chlorophenyl)thio)-11-methyl-7H-benzo[de]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one (CAS 97416-80-3), molecular formula C25H15ClN2OS and molecular weight 426.92 g/mol, is a CATO reference standard with documented purity and traceability.
3-((4-Chlorophenyl)thio)-11-methyl-7H-benzo[de]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one (C25H15ClN2OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 3-((4-Chlorophenyl)thio)-11-methyl-7H-benzo[de]benzo[4,5]imidazo[2,1-a]isoquinolin-7-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 | C25H15ClN2OS |
| Molecular Weight | 426.92 g/mol |
| 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |