9-(Chlorodiphenylsilyl)-9h-fluorene CAS 73220-53-8
| CAS No. | 73220-53-8 |
| Molecular Formula | C25H19ClSi |
| Molecular Weight | 382.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
9-(Chlorodiphenylsilyl)-9h-fluorene (CAS 73220-53-8), molecular formula C25H19ClSi and molecular weight 382.96 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C25H19ClSi, 9-(Chlorodiphenylsilyl)-9h-fluorene contains chlorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 382.96 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 9-(Chlorodiphenylsilyl)-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 | C25H19ClSi |
| Molecular Weight | 382.96 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
Recommended Standards
- 4-(((tert-Butyldiphenylsilyl)oxy)methyl)-2-chloropyrimidine (CAS 2280988-73-8)
- 2,6-Diiodo-5-methoxypyridin-3-ol (CAS 1087659-27-5)
- 1,3,2-Dioxaborolane, 2,2′-(2,5-selenophenediyl)bis[4,4,5,5-tetramethyl- (CAS 1611991-43-5)
- Avatrombopag Impurity 127 (CAS CATO-C4X-2234127)
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- 6-(Thiophen-2-yl)hexanoic acid (CAS 21010-07-1)
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- (1-(2,2,2-Trifluoroethyl)-1h-imidazol-2-yl)methanamine (CAS 1251925-35-5)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
Why CATO?
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