Iso-propylidene(3-methylcyclopentadienyl)-(9-fluorenyl)zirconium Dichloride CAS 133190-48-4
| CAS No. | 133190-48-4 |
| Molecular Formula | C22H20 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Iso-propylidene(3-methylcyclopentadienyl)-(9-fluorenyl)zirconium Dichloride.
Iso-propylidene(3-methylcyclopentadienyl)-(9-fluorenyl)zirconium Dichloride (CAS 133190-48-4) is a high-purity analytical reference standard with the molecular formula C22H20Cl2Zr and a molecular weight of 446.53 g/mol.
Owing to chlorine substitution, a polycyclic aromatic system, Iso-propylidene(3-methylcyclopentadienyl)-(9-fluorenyl)zirconium Dichloride is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 446.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Iso-propylidene(3-methylcyclopentadienyl)-(9-fluorenyl)zirconium Dichloride 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 | C22H20 Cl2Zr |
| Molecular Weight | 446.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
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