9,9’-Spirobi[9H-fluorene] CAS 159-66-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 159-66-0 |
| Molecular Formula | C25H16 |
| Molecular Weight | 316.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 9,9’-Spirobi[9H-fluorene] (CAS 159-66-0), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C25H16. Molecular weight: 316.39 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C25H16 |
| Molecular Weight | 316.39 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Spirobi Standards
- 9,9'-Spirobi[9H-fluoren]-2-amine (CAS 118951-68-1)
- 9,9'-Spirobi[fluoren]-4-amine (CAS 1579281-06-3)
- 9,9'-Spirobi[9H-9-silafluorene] (CAS 159-68-2)
- 9,9'-Spirobi[fluorene]-2,2'-diamine (CAS 67665-45-6)
- 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[fluoren]-3-ylboronic acid (CAS 1421789-04-9)
- 9,9’-Spirobi[fluorene]-4-boronic Acid (CAS 1421789-05-0)
- 9,9'-Spirobi[fluorene]-3,3',6,6'-tetraamine (CAS 622011-41-0)
Recommended Standards
- Dipropyl decanedioate (CAS 15419-91-7)
- Propyl (3-(((tert-butoxycarbonyl)amino)methyl)oxetan-3-yl)-L-alaninate (CAS 1620923-80-9)
- 1,4-Bis(Boc)-2-piperazinemethanol (CAS 143540-05-0)
- 2-(4-(Piperidin-1-yl)pyridin-3-yl)ethyl pyrimidine-5-carboxylate (CAS 823795-32-0)
- 6-(tert-butoxycarbonylamino)-1,4-dioxepane-6-carboxylic acid (CAS 1878069-76-1)
- 2,5-Dichloro-N-(2-(isopropylsulfonyl)phenyl)pyrimidin-4-amine, 97% (CAS 761440-16-8)
- (3,4-Difluorophenyl)(4-(hydroxymethyl)phenyl)methanone (CAS 1017598-62-7)
- Palmitoyl Hexapeptide-12 (CAS 171263-26-6)
- Trimebutine-d5 Fumarate (CAS CATO-C4X-18588)
- Tirzepatide Impurity 10 (CAS CATO-C4X-324010)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com