B-(9,9-Diphenyl-9H-fluoren-2-yl)-boronic Acid CAS 400607-31-0
| CAS No. | 400607-31-0 |
| Molecular Formula | C25H19BO2 |
| Molecular Weight | 362.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
B-(9,9-Diphenyl-9H-fluoren-2-yl)-boronic Acid (CAS 400607-31-0), molecular formula C25H19BO2 and molecular weight 362.23 g/mol, is a CATO reference standard with documented purity and traceability.
B-(9,9-Diphenyl-9H-fluoren-2-yl)-boronic Acid (C25H19BO2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), B-(9,9-Diphenyl-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 | C25H19BO2 |
| Molecular Weight | 362.23 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) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related B Standards
- 9,9-Diphenyl-9H-fluorene-4-boronic Acid (CAS 1224976-40-2)
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- 3-(1,5-Diphenyl-1H-pyrazol-4-yl)-4-ethyl-5-(methylsulfanyl)-4H-1,2,4-triazole (CAS 956964-51-5)
- 6,9-Diphenyl-9H-carbazol-3-yl-3-boronic acid (CAS 1133058-06-6)
- 2,4-Diphenyl-6-(3,4,5-trifluorophenyl)-1,3,5-triazine (CAS 1808158-43-1)
Recommended Standards
- 5-Benzyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1,2,4-oxadiazole (CAS 2377610-48-3)
- Green DND-26 (CAS 220524-71-0)
- 5-(1-Methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)-1-(3-(trifluoromethyl)phenyl)-1H-tetrazole (CAS 955976-84-8)
- tert-Butyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoyl)hydrazinecarboxylate (CAS 2096997-10-1)
- (2,4-dimethoxy-6-methylphenyl)methanol (CAS 181819-60-3)
- 7-Methoxy-2-methyl-5-nitro-1H-benzo[d]imidazole (CAS 103752-61-0)
- 1-(3,4-Dichlorophenyl)butan-2-one (CAS 213627-27-1)
- 1H-4,7-Methanopyrrolo[3,4-c]pyridine (CAS 126877-33-6)
- (S)-2-(2,5-difluorophenyl)-2-(methylamino)ethan-1-ol (CAS 1213320-01-4)
- Methyl 3-(4-(aminomethyl)phenyl)propanoate hydrochloride (CAS 103565-40-8)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-pyrrole-2-sulfonamide (CAS 338397-80-1)
- 2-(2-Formyl-5-nitro-1H-imidazol-1-yl)ethyl acetate (CAS 4812-32-2)
- N-BOC 4-Bromo-2,5-dimethylaniline (CAS 1086392-05-3)
- Semaglutide impurity 204 (CAS CATO-C4X-2226204)
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