2-(9,9'-Spirobi[fluoren]-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 1346007-05-3
| CAS No. | 1346007-05-3 |
| Molecular Formula | C31H27BO2 |
| Molecular Weight | 442.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-(9,9'-Spirobi[fluoren]-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
2-(9,9'-Spirobi[fluoren]-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1346007-05-3) is a high-purity analytical reference standard with the molecular formula C31H27BO2 and a molecular weight of 442.36 g/mol.
Structurally, 2-(9,9'-Spirobi[fluoren]-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (C31H27BO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 18.5, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 442.36 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1991 |
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]-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 884336-44-1)
- 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)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com