2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[9H-fluorene] CAS 728911-52-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 728911-52-2 |
| Molecular Formula | C37H38B2O4 |
| Molecular Weight | 568.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[9H-fluorene] (CAS 728911-52-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C37H38B2O4. Molecular weight: 568.32 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
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.) | 1986 |
Related Bis Standards
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- Tetramethyl 5,5,8-trimethyl-5,6-dihydrospiro[thiopyrano[2,3-c]quinoline-1,2'-[1,3]dithiole]-2,3,4',5'-tetracarboxylate (CAS 305343-76-4)
- Tetramethyl 5,5,9-trimethyl-5,6-dihydrospiro[thiopyrano[2,3-c]quinoline-1,2'-[1,3]dithiole]-2,3,4',5'-tetracarboxylate (CAS 258267-23-1)
- 3,3'-(2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluorene-9,9-diyl)dipropionic acid (CAS 1067250-06-9)
- Tetramethyl 5,5,8,9-tetramethyl-5,6-dihydrospiro[1,3-dithiole-2,1-thiopyrano[2,3-c]quinoline]-2,3,4,5-tetracarboxylate (CAS 331761-20-7)
- Tetramethyl 8-methoxy-5,5-dimethyl-5,6-dihydrospiro[thiopyrano[2,3-c]quinoline-1,2'-[1,3]dithiole]-2,3,4',5'-tetracarboxylate (CAS 307329-27-7)
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- 4,4,5,5-Tetramethyl-2-(3',4',5'-triphenyl-[1,1':2',1''-terphenyl]-3-yl)-1,3,2-dioxaborolane (CAS 872118-08-6)
Recommended Standards
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