3-Ethynyl-2,6-dimethoxypyridine CAS 1823908-50-4
| CAS No. | 1823908-50-4 |
| Molecular Formula | C9H9NO2 |
| Molecular Weight | 163.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H9NO2, 3-Ethynyl-2,6-dimethoxypyridine contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 163.17 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).
3-Ethynyl-2,6-dimethoxypyridine (CAS 1823908-50-4), molecular formula C9H9NO2 and molecular weight 163.17 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Ethynyl-2,6-dimethoxypyridine 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 | C9H9NO2 |
| Molecular Weight | 163.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related Ethynyl Standards
- 5-Ethynyl-2,3-dimethoxypyridine (CAS 1256818-53-7)
- 3-Ethynyl-2,4-dimethoxypyridine (CAS 1848959-24-9)
- 4-Ethynyl-3,5-dimethoxypyridine (CAS 2228928-81-0)
- 5-Ethynyl-N,1-dimethyl-1H-imidazole-2-carboxamide (CAS 1314640-60-2)
- 3-Ethynyl-5-nitropyridin-2-amine (CAS 1202474-63-2)
- 3-Ethynyl-4-nitrophenol (CAS 1260790-65-5)
- 3-Ethynyl-5-nitropyridin-4-amine (CAS 1824206-14-5)
- 2-Ethynyl-3-nitropyridin-4-amine (CAS 1851876-98-6)
Recommended Standards
- 3,3-Difluoro-1-(oxetan-3-yl)pyrrolidine (CAS 1823321-42-1)
- 3,3-Difluoro-1-(tetrahydrofuran-3-yl)azetidine (CAS 1824025-73-1)
- (1S,2S)-2-(pyridin-4-yl)cyclopropane-1-carboxylic acid (CAS 1821719-41-8)
- 2-Methyl-3-vinylisonicotinic acid (CAS 1824391-67-4)
- 1-Bromo-3-fluoro-5-((2-methoxyethoxy)methyl)benzene (CAS 1504282-99-8)
- 5-Methyl-4-phenyl-1H-pyrazole-3-carboxylic acid (CAS 94933-89-8)
- 4-Hydroxy-2-methyl-7-trifluoromethylquinoline (CAS 15912-66-0)
- (4-Bromo-1H-indol-3-yl)methanamine (CAS 887581-26-2)
- Tenofovir disoproxil Impurity 136 (CAS CATO-C4X-1076136)
- 4-benZyl-1-oxa-4,8-diazaspiro[5.5]undecane (CAS 1367727-20-5)
- Strontium peroxide (CAS 1314-18-7)
- 5-Bromo-1,3-dihydrobenzoimidazol-2-one (CAS 39513-26-3)
- (6-Methylquinolin-2-yl)methanamine (CAS 1087790-60-0)
- Peptide 438 (CAS CATO-CPTD788438)
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