2-Oxo-2-(pyridin-2-yl)acetaldehyde CAS 22109-63-3
| CAS No. | 22109-63-3 |
| Molecular Formula | C7H5NO2 |
| Molecular Weight | 135.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Oxo-2-(pyridin-2-yl)acetaldehyde 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.
2-Oxo-2-(pyridin-2-yl)acetaldehyde (CAS 22109-63-3), molecular formula C7H5NO2 and molecular weight 135.12 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5NO2, 2-Oxo-2-(pyridin-2-yl)acetaldehyde 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 135.12 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.
Physical & Chemical Properties
| Molecular Formula | C7H5NO2 |
| Molecular Weight | 135.12 g/mol |
| 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.) | 1963 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- 2-Oxo-2-(pyridin-3-yl)acetaldehyde (CAS 63464-84-6)
- (E)-3-(Pyridin-2-yl)prop-2-en-1-ol (CAS 113985-52-7)
- (E)-3-(Pyridin-3-yl)prop-2-en-1-ol (CAS 120277-39-6)
- 1-(Pyridin-3-yl)cyclopropan-1-ol (CAS 1250291-36-1)
- 1-(Pyridin-4-yl)cyclopropan-1-ol (CAS 1250550-58-3)
- 1-(Pyridin-3-yl)propan-1-one (CAS 1570-48-5)
- 2-(Pyridin-2-yl)propanal (CAS 162895-00-3)
- 1-(Pyridin-2-yl)prop-2-en-1-ol (CAS 204244-60-0)
Recommended Standards
- 2-Nitrosobenzaldehyde (CAS 29809-25-4)
- 2-Methyl-3-oxo-2,3-dihydropyridazine-4-carbonitrile (CAS 92187-25-2)
- 3-(2-Furyl)-1H-1,2,4-triazole (CAS 23195-65-5)
- 2-Isocyanatophenol (CAS 63905-47-5)
- 4-Amino-7-methylpteridine 5-oxide (CAS 1010-55-5)
- 2-(3-Chlorobenzamido)acetic acid (CAS 57728-59-3)
- trans-4-(trans-4-Propylcyclohexyl)cyclohexanol (CAS 82832-72-2)
- 2,3,5-Trifluorobenzophenone (CAS 235772-90-4)
- Methyl 4-chloro-2,5-difluorobenzoate (CAS 1214361-01-9)
- Fluocinolone Acetonide EP Impurity C (CAS 807-38-5)
- 7-Cyclopropyl-imidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1019022-09-3)
- 3-Bromo-N5-cyclopropyl-N7-methylbenzofuran-5,7-dicarboxamide (CAS 2306055-12-7)
- (2-ethyl-6-methylphenyl)methanol (CAS 106976-43-6)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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