9,9'-Spirobi[fluorene]-2,2'-diyldiboronic acid pinacol ester CAS 676168-63-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 676168-63-1 |
| Molecular Formula | C37H38B2O4 |
| Molecular Weight | 568.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 9,9'-Spirobi[fluorene]-2,2'-diyldiboronic acid pinacol ester (CAS 676168-63-1) pharmaceutical standards reference standard. Molecular formula: C37H38B2O4. Molecular weight: 568.32 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C37H38B2O4 |
| Molecular Weight | 568.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
Related Spirobi Standards
- 2-(9,9'-Spirobi[fluoren]-2-yl)-4,6-diphenyl-1,3,5-triazine (CAS 1207176-84-8)
- 9,9'-Spirobi[fluoren]-2-yldiphenylphosphine oxide (CAS 1125547-88-7)
- 9,9'-Spirobi[fluoren]-4-yldiphenylphosphine oxide (CAS 1314243-72-5)
- 4,4''-Bi(9,9'-spirobi[fluorene]) (CAS 1161009-90-0)
- 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1161009-89-7)
- 2-(9,9'-Spirobi[fluoren]-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1346007-05-3)
- 2-(9,9''-Spirobi[fluoren]-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 884336-44-1)
- 9,9′-Spirobi[9H-fluorene]-2,2′-diamine, N2,N2,N2′,N2′-tetrakis(4-methylphenyl)- (CAS 515833-76-8)
Recommended Standards
- 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[9H-fluorene] (CAS 728911-52-2)
- 2-(Benzenesulfonyl)-4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl 4-chlorobenzoate (CAS 338407-45-7)
- Trimethoxy(1H,1H,2H,2H-heptadecafluorodecyl)silane (CAS 83048-65-1)
- 4-(Morpholinomethyl)benzimidamide hydrochloride (CAS 1221725-42-3)
- 4,6-Dimethyl-2-((piperidin-3-ylmethyl)thio)pyrimidine (CAS 1247604-18-7)
- Indacaterol Impurity 26 maleate (CAS 773895-24-2)
- 4-(3-Chlorophenyl)thiazole-2-carbaldehyde (CAS 383142-59-4)
- ethyl 2-sulfanyl-4-(trifluoromethyl)pyrimidine-5-carboxylate (CAS 676438-98-5)
- 2-((3,4-Dichlorobenzyl)(methyl)amino)ethanol (CAS 1249407-34-8)
- Glucagon (19-29) (human, rat, porcine) (CAS 64790-15-4)
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