(9,9-Dimethyl-9H-fluoren-4-yl)boronic acid CAS 1246022-50-3
| CAS No. | 1246022-50-3 |
| Molecular Formula | C15H15BO2 |
| Molecular Weight | 238.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(9,9-Dimethyl-9H-fluoren-4-yl)boronic acid (CAS 1246022-50-3) is a high-purity analytical reference standard with the molecular formula C15H15BO2 and a molecular weight of 238.09 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, (9,9-Dimethyl-9H-fluoren-4-yl)boronic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 238.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C15H15BO2 |
| Molecular Weight | 238.09 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Dimethyl Standards
- (9,9-Dimethyl-9H-fluoren-3-yl)boronic acid (CAS 1251773-34-8)
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- 9,9-Dimethyl-2-fluoreneboronic Acid (CAS 333432-28-3)
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- 2-[cis-2,6-dimethyl-3,6-dihydro-2H-pyran-4-yl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1394909-88-6)
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Recommended Standards
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- Fenazaquin Impurity 5 (CAS 124428-06-4)
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