2,4-Diphenyl-5,6-dihydrobenzo[h]chromen-1-ium iodide CAS 87444-91-5
| CAS No. | 87444-91-5 |
| Molecular Formula | C25H19O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4-Diphenyl-5,6-dihydrobenzo[h]chromen-1-ium iodide (CAS 87444-91-5), molecular formula C25H19OI and molecular weight 462.33 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C25H19OI, 2,4-Diphenyl-5,6-dihydrobenzo[h]chromen-1-ium iodide contains a steroid core, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 462.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2,4-Diphenyl-5,6-dihydrobenzo[h]chromen-1-ium iodide 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 | C25H19O I |
| Molecular Weight | 462.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | I-containing |
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