5-(1,3-Dioxolan-2-yl)-2-(tributylstannyl)pyridine CAS 220904-18-7
| CAS No. | 220904-18-7 |
| Molecular Formula | C20H35NO2Sn |
| Molecular Weight | 440.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-(1,3-Dioxolan-2-yl)-2-(tributylstannyl)pyridine.
5-(1,3-Dioxolan-2-yl)-2-(tributylstannyl)pyridine (CAS 220904-18-7), molecular formula C20H35NO2Sn and molecular weight 440.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(1,3-Dioxolan-2-yl)-2-(tributylstannyl)pyridine (C20H35NO2Sn) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 440.21 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C20H35NO2Sn |
| Molecular Weight | 440.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Nitrogen Atoms | 1 |
Related Dioxolan Standards
- (5-(1,3-Dioxolan-2-yl)thiophen-2-yl)tributylstannane (CAS 349616-56-4)
- (2-Methyl-1,3-dioxolan-4-yl)methyl 2-(N-((4,6-dimethylpyrimidin-2-yl)carbamoyl)sulfamoyl)benzoate (CAS 1781241-40-4)
- 5-[4-[2-[5-(2-Methyl-1,3-dioxolan-2-yl)-2-pyridinyl]ethoxy-d4]benzyl]-2,4-thiazolidinedione (CAS 1189460-98-7)
- 5-[4-[2-[5-(2-Methyl-1,3-dioxolan-2-yl)-2-pyridyl]ethoxy]benzyl]-2,4-thiazolidinedione (CAS 184766-66-3)
- 5-[4-[2-[5-(2-Methyl-1,3-dioxolan-2-yl)-2-pyridyl]ethoxy]benzylidene]-2,4-thiazolidinedione (CAS 184766-62-9)
- (Z)-3-((((1,3-dioxolan-2-yl)methyl)(methyl)amino)methyl)-5-((4-oxo-4H-chromen-3-yl)methylene)-2-thioxoimidazolidin-4-one (CAS 865659-92-3)
- [4-(1,3-Dioxolan-2-yl)butyl]triphenylphosphonium (CAS 697733-23-6)
- (5-(1,3-Dioxolan-2-yl)thiophen-2-yl)(2-iodophenyl)methanone (CAS 898778-10-4)
Recommended Standards
- 3-{[(4-bromophenyl)methyl]sulfanyl}-6-[(2,4-dichlorophenyl)methyl]pyridazine (CAS 241132-59-2)
- Ethyl 5-(tributylstannyl)nicotinate (CAS 405938-98-9)
- Pretomanid Impurity 7 (CAS CATO-C4X-26067)
- Lotilaner Impurity 14 (CAS CATO-C4X-325614)
- 3-(4-fluorophenyl)-2-azaspiro[3.3]heptan-1-one (CAS 1872447-17-0)
- 2-(Difluoromethyl)-5-iodo-3-methoxypyridine-4-acetic acid (CAS 1805545-46-3)
- (3R,4R,5R,6R)-3-Amino-6-(hydroxymethyl)tetrahydro-2H-pyran-2,4,5-triol (CAS 90-76-6)
- 5-Chloro-2-ethynylpyridin-3-amine (CAS 1150617-82-5)
- 2-(Difluoromethyl)-5-hydroxy-6-methyl-3-nitropyridine (CAS 1805199-06-7)
- 3-[(2-methoxyethyl)amino]propanoic acid (CAS 1040073-81-1)
- 2-(Difluoromethyl)-3-iodo-5-methylpyridine-4-carbonyl chloride (CAS 1807139-12-3)
- 5-(2-aminopropyl)-1-methyl-1H,4H,5H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 924871-62-5)
- 2-Chloro-N'-(2-cyclopropylacetyl)acetohydrazide (CAS 1263386-34-0)
- Antiarrhythmic peptide (cattle atrium) (CAS 81771-37-1)
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