2,7-Diiodo-9,9-dioctyl-9H-fluorene CAS 278176-06-0
| CAS No. | 278176-06-0 |
| Molecular Formula | C29H40I2 |
| Molecular Weight | 642.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
2,7-Diiodo-9,9-dioctyl-9H-fluorene (CAS 278176-06-0), molecular formula C29H40I2 and molecular weight 642.44 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C29H40I2, 2,7-Diiodo-9,9-dioctyl-9H-fluorene contains iodine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 642.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C29H40I2 |
| Molecular Weight | 642.44 g/mol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | I-containing |
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Recommended Standards
- 6,6'-Dibromo-9,9'-diphenyl-3,3'-bicarbazole (CAS 354135-75-4)
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- 7-(Trifluoromethyl)-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-2-carboxylic acid (CAS 1246549-69-8)
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