(7-Bromo-9,9-dioctyl-9H-fluoren-2-yl)boronic acid CAS 253870-90-5
| CAS No. | 253870-90-5 |
| Molecular Formula | C29H42BBrO2 |
| Molecular Weight | 513.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(7-Bromo-9,9-dioctyl-9H-fluoren-2-yl)boronic acid (CAS 253870-90-5), molecular formula C29H42BBrO2 and molecular weight 513.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (7-Bromo-9,9-dioctyl-9H-fluoren-2-yl)boronic acid (C29H42BBrO2) is characterized by a steroid core, a hydroxyl group, an ether linkage, bromine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), (7-Bromo-9,9-dioctyl-9H-fluoren-2-yl)boronic acid 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 | C29H42BBrO2 |
| Molecular Weight | 513.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
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