2,7-Diiodo-9,9-bis(10-iododecyl)-9H-fluorene CAS 278176-07-1
| CAS No. | 278176-07-1 |
| Molecular Formula | C37H56I2 |
| Molecular Weight | 754.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,7-Diiodo-9,9-bis(10-iododecyl)-9H-fluorene is closely related to iodine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,7-Diiodo-9,9-bis(10-iododecyl)-9H-fluorene (CAS 278176-07-1) is a high-purity analytical reference standard with the molecular formula C37H56I2 and a molecular weight of 754.65 g/mol.
The molecular framework of 2,7-Diiodo-9,9-bis(10-iododecyl)-9H-fluorene (C37H56I2) is characterized by iodine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C37H56I2 |
| Molecular Weight | 754.65 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
- N,N'-[(1S,2S)-1,2-Diphenyl-1,2-ethanediyl]bis[N'-[3,5-bis(trifluoromethyl)phenyl]thiourea] (CAS 1416334-72-9)
- Diacerein EP Impurity G (CAS 64951-96-8)
- N,N'-[(1R,2R)-1,2-Diphenyl-1,2-ethanediyl]bis[N'-[3,5-bis(trifluoromethyl)phenyl]thiourea] (CAS 1012051-90-9)
- 3,6'－Disinapoyl sucrose (CAS 139891-98-8)
- 1-(2-Chlorophenyl)-3-(3,5-dimethylphenyl)propan-1-one (CAS 898780-80-8)
- 2-(3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl)ethan-1-amine (CAS 885953-67-3)
- (2-Bromophenyl)(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methanone (CAS 164526-08-3)
- 3-amino-6-methylpiperidin-2-one (CAS 45673-16-3)
- 1-(4-(4-(4-Methylpiperazine-1-carbonyl)piperidin-1-yl)phenyl)ethan-1-one (CAS 900018-98-6)
- Tert-butyl 3-(trifluoromethyl)-1H-pyrazole-5-carboxylate (CAS 2104659-22-3)
- N-Cyclohexyl-5,6-diphenylpyridazin-3-amine (CAS 321359-43-7)
- Formic Acid 1-propen-2-yl ester (CAS 32978-00-0)
- 1H- Pyrazole- 3- carboxaldehyde (CAS 3920-50-1)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
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