Poly[9,9-bis-(2-ethylhexyl)-9H-fluorene-2,7-diyl] CAS 188201-16-3
| CAS No. | 188201-16-3 |
| Molecular Formula | C29H40Br2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Poly[9,9-bis-(2-ethylhexyl)-9H-fluorene-2,7-diyl] 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.
Poly[9,9-bis-(2-ethylhexyl)-9H-fluorene-2,7-diyl] (CAS 188201-16-3), molecular formula C29H40Br2N and molecular weight 562.45 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Poly[9,9-bis-(2-ethylhexyl)-9H-fluorene-2,7-diyl] (C29H40Br2N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.5, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 562.45 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C29H40Br2 N |
| Molecular Weight | 562.45 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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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