1-Chloro-3-(3-ethyl-1,1-dimethyl-1,3-dihydro-2h-benzo[e]indol-2-ylidene)propan-2-one CAS 522628-47-3
| CAS No. | 522628-47-3 |
| Molecular Formula | C19H20ClNO |
| Molecular Weight | 313.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-Chloro-3-(3-ethyl-1,1-dimethyl-1,3-dihydro-2h-benzo[e]indol-2-ylidene)propan-2-one (CAS 522628-47-3), molecular formula C19H20ClNO and molecular weight 313.82 g/mol, is a CATO reference standard with documented purity and traceability.
1-Chloro-3-(3-ethyl-1,1-dimethyl-1,3-dihydro-2h-benzo[e]indol-2-ylidene)propan-2-one (C19H20ClNO) contains a steroid core, an amide group, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 1-Chloro-3-(3-ethyl-1,1-dimethyl-1,3-dihydro-2h-benzo[e]indol-2-ylidene)propan-2-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.
Physical & Chemical Properties
| Molecular Formula | C19H20ClNO |
| Molecular Weight | 313.82 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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