Trimethyl(phenanthren-9-yl)stannane CAS 957-74-4
| CAS No. | 957-74-4 |
| Molecular Formula | C17H18Sn |
| Molecular Weight | 341.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Trimethyl(phenanthren-9-yl)stannane (CAS 957-74-4), molecular formula C17H18Sn and molecular weight 341.03 g/mol, is a CATO reference standard with documented purity and traceability.
Trimethyl(phenanthren-9-yl)stannane (C17H18Sn) 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 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H18Sn |
| Molecular Weight | 341.03 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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Recommended Standards
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- 5,7-Dibromo-1,2,3,4-tetrahydroacridine (CAS 861206-56-6)
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- Ethyl 2-oxo-3,4-dihydro-2H-pyrrole-5-carboxylate (CAS 360782-67-8)
- 1-Benzyl 2-methyl (R)-piperazine-1,2-dicarboxylate hydrochloride (CAS 1217455-34-9)
- 2-Phenyl-4,5,6,7-tetrahydro-2H-pyrazolo[3,4-b]pyridin-3-ol (CAS 1707609-49-1)
- 2-(4,5-Dihydroisoxazol-3-yl)-3-methylaniline (CAS 250592-89-3)
- 2-Methyl-N-phenethyl-6-phenyl-5H-pyrrolo[3,2-d]pyrimidin-4-amine (CAS 72549-74-7)
- 5,6-Difluoro-2-(2-hexyldecyl)-2H-benzo[d][1,2,3]triazole (CAS 1563332-24-0)
- 2-chloro-N-(2-chloro-6-methylphenyl)thiazole-5-carboxamide (CAS 302964-11-0)
- 2-Cyclopropyloxazole-4-carbaldehyde (CAS 1393673-02-3)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
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