2,3,5,6-Tetrachloro-4-(methyldiphenylsilyl)pyridine CAS 31397-65-6
| CAS No. | 31397-65-6 |
| Molecular Formula | C18H13Cl4NSi |
| Molecular Weight | 413.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,3,5,6-Tetrachloro-4-(methyldiphenylsilyl)pyridine (C18H13Cl4NSi) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, 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).
2,3,5,6-Tetrachloro-4-(methyldiphenylsilyl)pyridine (CAS 31397-65-6) is a high-purity analytical reference standard with the molecular formula C18H13Cl4NSi and a molecular weight of 413.20 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H13Cl4NSi |
| Molecular Weight | 413.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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- 4,5,6,7-Tetrachloro-2-(quinolin-2-yl)-1H-indene-1,3(2H)-dione (CAS 27908-75-4)
- 8,9,10,11-Tetrachloro-12H-phthaloperin-12-one (CAS 20749-68-2)
- 2-(4,5,6,7-Tetrachloro-1,3-dioxoisoindolin-2-yl)benzoic acid (CAS 351998-35-1)
- 3-(4,5,6,7-Tetrachloro-1,3-dioxoisoindolin-2-yl)benzoic acid (CAS 351998-37-3)
- 4-Methyl-2-(4,5,6,7-tetrachloro-1,3-dioxoisoindolin-2-yl)pentanoic acid (CAS 90027-14-8)
- 2,3,4,5-Tetrachloro-6-((2-fluorophenyl)carbamoyl)benzoic acid (CAS 61747-73-7)
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Recommended Standards
- Ethiprole-sulfone (CAS 120068-68-0)
- N-(2-(2,4-dichlorophenyl)hydrazine-1-carbonyl)-2-methyl-4-(trifluoromethyl)thiazole-5-carboxamide (CAS 339030-01-2)
- 8-[(6-Iodobenzo[d][1,3]dioxol-5-yl)thio]-9H-purin-6-amine (CAS 873436-89-6)
- LEOIDIN (CAS 105350-54-7)
- 2,2,6,6-Tetramethyl-1,2,3,6-tetrahydro-4-pyridineboronic acid pinacol ester hydrochloride (CAS 2379560-83-3)
- 2-Cyclopropoxy-6-fluorobenzamide (CAS 1243473-08-6)
- N-(2-(2,2-Di(1H-indol-3-yl)ethyl)phenyl)-2-methoxybenzamide (CAS 88048-46-8)
- 6-Iodo-1H-pyrrolo[3,2-b]pyridin-3-amine (CAS 1260383-31-0)
- 1,2-Dichloro-3-fluorobenzene (CAS 36556-50-0)
- 3-(2-Fluorophenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine (CAS 916423-12-6)
- n1-Ethyl-n1-(2-ethylbutyl)ethane-1,2-diamine (CAS 1153378-42-7)
- 3-(4-METHOXYPHENYL)PROPYLAMINE HCL (CAS 36397-51-0)
- 1-methylpiperidine-4-carbonyl chloride (CAS 41776-24-3)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
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