9,9’-Spirobi[9H-fluorene] CAS 159-66-0
| 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
Compared with other compounds in its class, the molecular weight of 316.39 g/mol gives 9,9’-Spirobi[9H-fluorene] distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
9,9’-Spirobi[9H-fluorene] (CAS 159-66-0) is a high-purity analytical reference standard with the molecular formula C25H16 and a molecular weight of 316.39 g/mol.
9,9’-Spirobi[9H-fluorene] (C25H16) contains a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 9,9’-Spirobi[9H-fluorene] 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.
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)
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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