2-(3-Chlorophenyl)-9,9'-spirobi[fluorene] CAS 1556069-52-3
| CAS No. | 1556069-52-3 |
| Molecular Formula | C31H19Cl |
| Molecular Weight | 426.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(3-Chlorophenyl)-9,9'-spirobi[fluorene] (CAS 1556069-52-3), a certified reference material (molecular formula C31H19Cl, MW 426.94 g/mol) for analytical method development and quality control.
The molecular framework of 2-(3-Chlorophenyl)-9,9'-spirobi[fluorene] (C31H19Cl) is characterized by chlorine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 2-(3-Chlorophenyl)-9,9'-spirobi[fluorene] meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C31H19Cl |
| Molecular Weight | 426.94 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 2-(3-((4-Chlorophenyl)sulfonyl)propanamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 771506-62-8)
- 2-((5-(4-Chlorophenyl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-cyclohexylacetamide (CAS 309266-55-5)
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- N-(3-Chlorophenyl)-2-((5-cyclohexyl-4-phenyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332870-47-0)
- N-(4-Chlorophenyl)-2-((5-cyclohexyl-4-phenyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332872-76-1)
- 4-[4-(2-Chlorophenyl)-1,3-thiazol-2-yl]-N-(2,4-difluorophenyl)benzamide (CAS 338396-97-7)
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Recommended Standards
- (R)-tert-butyl 3-((R)-(3-chlorophenyl)(2-((methoxycarbonyl)amino)ethoxy)methyl)piperidine-1-carboxylate (CAS 942142-79-2)
- (4Z)-N-[(2-Chlorophenyl)methoxy]-1,2-diphenyl-4,5,6,7-tetrahydro-1H-indol-4-imine (CAS 339105-90-7)
- Bromochlorophene (CAS 15435-29-7)
- (4Z)-N-[(3-Chlorophenyl)methoxy]-1,2-diphenyl-4,5,6,7-tetrahydro-1H-indol-4-imine (CAS 339105-92-9)
- N-(1-(1H-Benzo[d][1,2,3]triazol-1-yl)ethyl)benzamide (CAS 157944-79-1)
- 2-Ethyl-6-methyl-1,4-diazabicyclo[2.2.2]octane (CAS 67820-72-8)
- Trimethylpyrimidin-4-ol (CAS 89943-15-7)
- 6-(Methyl(phenyl)amino)nicotinaldehyde (CAS 1355226-56-0)
- N-Ethyl-2-(2-oxo-2,3-dihydro-1H-imidazol-4-yl)acetamide (CAS 952734-14-4)
- 2-((4-Methoxyphenyl)thio)-5-nitrobenzonitrile (CAS 306980-91-6)
- Ethyl 4-chloro-2,6-dimethylnicotinate (CAS 70271-80-6)
- Emtricitabine impurity 45 (CAS 161683-20-1)
- 2-Chloro-2,2-difluoro-1-(2-phenyl-1H-indol-3-yl)ethan-1-ol (CAS 860650-07-3)
- Liraglutide Impurity 28 (CAS CATO-C4X-199228)
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