1'-[(2E)-3-(3,4-dichlorophenyl)-2-propen-1-yl]-spiro[imidazolidine-4,3'-[3H]indole]-2,2',5(1'H)-trio CAS 945736-61-8
| CAS No. | 945736-61-8 |
| Molecular Formula | C19H13Cl2N3O3 |
| Molecular Weight | 402.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H13Cl2N3O3, 1'-[(2E)-3-(3,4-dichlorophenyl)-2-propen-1-yl]-spiro[imidazolidine-4,3'-[3H]indole]-2,2',5(1'H)-trio contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 402.23 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.
1'-[(2E)-3-(3,4-dichlorophenyl)-2-propen-1-yl]-spiro[imidazolidine-4,3'-[3H]indole]-2,2',5(1'H)-trio (CAS 945736-61-8) is a high-purity analytical reference standard with the molecular formula C19H13Cl2N3O3 and a molecular weight of 402.23 g/mol.
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'-[(2E)-3-(3,4-dichlorophenyl)-2-propen-1-yl]-spiro[imidazolidine-4,3'-[3H]indole]-2,2',5(1'H)-trio 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 | C19H13Cl2N3O3 |
| Molecular Weight | 402.23 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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