N2,N7-Bis(2,3-dimethylphenyl)-9-oxo-9H-fluorene-2,7-disulfonamide CAS 303059-40-7
| CAS No. | 303059-40-7 |
| Molecular Formula | C29H26N2O5S2 |
| Molecular Weight | 546.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N2,N7-Bis(2,3-dimethylphenyl)-9-oxo-9H-fluorene-2,7-disulfonamide (CAS 303059-40-7) is a high-purity analytical reference standard with the molecular formula C29H26N2O5S2 and a molecular weight of 546.66 g/mol.
The molecular framework of N2,N7-Bis(2,3-dimethylphenyl)-9-oxo-9H-fluorene-2,7-disulfonamide (C29H26N2O5S2) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C29H26N2O5S2 |
| Molecular Weight | 546.66 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Recommended Standards
- Fmoc-Dab(ivDde)-OH (CAS 607366-21-2)
- N2,N7-Bis(2,4-dimethylphenyl)-9-oxo-9H-fluorene-2,7-disulfonamide (CAS 303059-42-9)
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