9,9'-Spirobi[fluoren]-3-ylboronic acid CAS 1421789-04-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1421789-04-9 |
| Molecular Formula | C25H17BO2 |
| Molecular Weight | 360.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
9,9'-Spirobi[fluoren]-3-ylboronic acid (CAS 1421789-04-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C25H17BO2. Molecular weight: 360.21 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C25H17BO2 |
| Molecular Weight | 360.21 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) | 17.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Spirobi Standards
- 9,9’-Spirobi[fluorene]-4-boronic Acid (CAS 1421789-05-0)
- 77-08-7 1,1'-Spirobi(indan)-5,5',6,6'-tetrol, 3,3,3',3'-tetramethyl- (8CI) 1,1'-Spirobi(1H-indene)-5,5',6,6'-tetrol, 2,2',3,3'-tetrahydro-3,3,3',3'-tetramethyl- 1,1'-Spirobi(1H-inden)-5,5',6,6'-tetrol, 2,2',3,3'-tetrahydro-3,3,3',3'-tetramethyl- 2,2',3,3'-Tetrahydro-3,3,3',3'-tetramethyl-1,1'-spirobi(1H-indene)-5,5',6,6'-tetrol AI3-16787 EINECS 201-003-1 NSC 512922 1,1'-Spirobi(indane-5,6-diol), 3,3,3',3'-tetramethyl- TTS 5 AI 3-16787 (CAS 77-08-7)
- 9,9'-Spirobi[fluorene]-2,2'-diamine (CAS 67665-45-6)
- 9,9'-Spirobi[fluorene]-3,3',6,6'-tetraamine (CAS 622011-41-0)
- 9,9'-Spirobi[9H-9-silafluorene] (CAS 159-68-2)
- 9,9'-Spirobi[9H-fluoren]-2-amine (CAS 118951-68-1)
- 9,9'-Spirobi[fluoren]-4-amine (CAS 1579281-06-3)
- 1,1'-(9,9'-Spirobi[fluorene]-2,2'-diyl)diethanone (CAS 22824-83-5)
Recommended Standards
- tert-Butyl (6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]oxazol-2-yl)carbamate (CAS 1404480-24-5)
- 2-Bromo-5-methoxy-N-(pyrazolo[1,5-a]pyridin-3-ylmethyl)benzamide (CAS 1396854-81-1)
- N-(3-Bromophenyl)-6,7-dimethoxyquinazolin-4-amine (CAS 153436-54-5)
- Ethyl 3,4-difluoro-5-nitrophenylacetate (CAS 1804517-27-8)
- 2-Bromo-N-cyclohexylpropanamide (CAS 94318-82-8)
- 2-(6-Fluoro-1H-benzo[d]imidazol-2-yl)ethan-1-ol (CAS 915924-12-8)
- N,N'-Dipyridoylhydrazine (CAS 840-79-9)
- 4-Bromo-2-fluoro-1-thiocyanatobenzene (CAS 2149597-41-9)
- 3-(Chloromethyl)-2,4,6-trimethylphenol (CAS 99187-90-3)
- [14-31]-Semaglutide (CAS CATO-C4X-2226262)
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