2-(9,9''-Spirobi[fluoren]-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 884336-44-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 884336-44-1 |
| Molecular Formula | C31H27BO2 |
| Molecular Weight | 442.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(9,9''-Spirobi[fluoren]-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 884336-44-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C31H27BO2. Molecular weight: 442.36 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C31H27BO2 |
| Molecular Weight | 442.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 18.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Spirobi Standards
- 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)
- 3-Phenyl-9,9'-spirobi[fluoren]-2-amine (CAS 2214221-84-6)
- 9,9'-Spirobi[fluorene]-2',7-diyldiboronic acid (CAS 1222007-94-4)
- 9,9'-Spirobi[fluorene]-2,7-diyldiboronic acid (CAS 1222537-26-9)
- 1,1'-(9,9'-Spirobi[fluorene]-2,2'-diyl)diethanone (CAS 22824-83-5)
- 9,9'-Spirobi[fluorene]-3,3',6,6'-tetraamine (CAS 622011-41-0)
- 9,9'-Spirobi[fluoren]-2-yldiphenylphosphine oxide (CAS 1125547-88-7)
Recommended Standards
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- tert-Butyl (3-(5-amino-6-methoxypyrazin-2-yl)propyl)carbamate (CAS 1621083-38-2)
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