1-(6-Ethynylpyridin-3-yl)ethan-1-one CAS 1256786-43-2
| CAS No. | 1256786-43-2 |
| Molecular Formula | C9H7NO |
| Molecular Weight | 145.16 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 1-(6-Ethynylpyridin-3-yl)ethan-1-one.
1-(6-Ethynylpyridin-3-yl)ethan-1-one (CAS 1256786-43-2), molecular formula C9H7NO and molecular weight 145.16 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H7NO, 1-(6-Ethynylpyridin-3-yl)ethan-1-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 145.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), 1-(6-Ethynylpyridin-3-yl)ethan-1-one 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 | C9H7NO |
| Molecular Weight | 145.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Ethynylpyridin Standards
- 1-(5-Ethynylpyridin-2-yl)ethan-1-one (CAS 1256786-45-4)
- 1-(5-Ethynylpyridin-3-yl)ethan-1-one (CAS 1256788-24-5)
- 1-(4-Ethynylpyridin-2-yl)ethan-1-one (CAS 1256789-53-3)
- 1-(2-Ethynylpyridin-4-yl)ethan-1-one (CAS 1256805-00-1)
- 1-(6-Ethynylpyridin-2-yl)ethanone (CAS 874379-35-8)
- 4-Ethyl-3-ethynylpyridin-2-amine (CAS 1393560-86-5)
- (5-Ethynylpyridin-3-yl)boronic acid (CAS 1206681-16-4)
- (2-Ethynylpyridin-4-yl)boronic acid (CAS 1429743-69-0)
Recommended Standards
- 1-(4-Isocyanophenyl)ethanone (CAS 125192-28-1)
- 4-Hydroxytetrahydro-2H-pyran-4-carboxamide (CAS 1250204-50-2)
- 2-(1-methyl-1H-1,2,4-triazol-5-yl)acetic acid (CAS 1248789-39-0)
- 2-hydroxy-2-(oxolan-3-yl)acetamide (CAS 1247174-57-7)
- 2,5-Difluoro-4-morpholinoaniline (CAS 1238704-91-0)
- N-(2-(1H-indol-3-yl)ethyl)-2-(1H-indol-3-yl)-2-oxoacetamide (CAS 107634-85-5)
- 1,2,2,2-Tetrafluoroethyl trifluoromethyl ether (CAS 2356-62-9)
- 6-(4-Phenylpiperazin-1-yl)nicotinimidamide (CAS 1016866-61-7)
- 1-(2,4-Dimethoxy-5-(phenylselanyl)phenyl)ethanone (CAS 646472-75-5)
- tert-Butyl 1-(2-amino-2-oxoethyl)-4,6-dihydropyrrolo[3,4-c]pyrazole-5(1H)-carboxylate (CAS 1270029-91-8)
- N-(2-Bromo-4-fluorophenyl)-4-[2-nitro-4-(trifluoromethyl)phenyl]-1,4-diazepane-1-carbothioamide (CAS 900019-61-6)
- 3-Bromo-2-cyclopropoxybenzenesulfonamide (CAS 1243375-89-4)
- Nicotinamide Impurity 18 (CAS 38806-38-1)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
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