2-Oxo-2-(pyridin-3-yl)acetic acid CAS 39684-37-2
| CAS No. | 39684-37-2 |
| Molecular Formula | C7H5NO3 |
| Molecular Weight | 151.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Oxo-2-(pyridin-3-yl)acetic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-Oxo-2-(pyridin-3-yl)acetic acid (CAS 39684-37-2), a certified reference material (molecular formula C7H5NO3, MW 151.12 g/mol) for analytical method development and quality control.
2-Oxo-2-(pyridin-3-yl)acetic acid (C7H5NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).
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.
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 | C7H5NO3 |
| Molecular Weight | 151.12 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- 2-Oxo-2-(pyridin-4-yl)acetic acid (CAS 71708-14-0)
- Pyridin-4-ylmethyl acetate (CAS 1007-48-3)
- Pyridin-3-ylmethyl acetate (CAS 10072-09-0)
- 1-(Pyridin-2-yloxy)propan-2-one (CAS 1401081-24-0)
- 3-(Pyridin-4-yl)oxetan-3-ol (CAS 1438858-58-2)
- 2-(Pyridin-4-yl)propanoic acid (CAS 90005-63-3)
- 2-(Pyridin-2-ylamino)acetamide (CAS 102000-66-8)
- 1-methyl-1-(pyridin-3-yl)urea (CAS 1342445-75-3)
Recommended Standards
- 2-Methoxy-6-oxo-1,6-dihydropyrimidine-5-carbonitrile (CAS 6971-62-6)
- 2H-Pyrazolo[4,3-c]pyridine-4,6(5H,7H)-dione (CAS 860411-17-2)
- 3-(Furan-2-yl)isoxazol-5(4H)-one (CAS 22343-98-2)
- 2h-[1,3]dioxolo[4,5-c]pyridine-6-carbaldehyde (CAS 959617-89-1)
- 2-Bromo-5H-indeno[1,2-d]pyrimidine (CAS 1823584-57-1)
- 2-(2-(Isobutylthio)-1H-benzo[d]imidazol-1-yl)acetic acid (CAS 326019-70-9)
- 3-Methyl-4-oxo-N-(2,2,2-trifluoroethyl)-4,5,6,7-tetrahydrobenzofuran-2-carboxamide (CAS 1355174-25-2)
- 3-Cyclopentyl-7-(cyclopropylamino)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione (CAS 1396760-55-6)
- (1,2,3,4-Tetrahydronaphthalen-2-yl)methanamine hydrochloride (CAS 136759-34-7)
- N-Nitroso Saxagliptin Intermediate (CAS CATO-C4X-104963)
- 7-Chloro-6-fluoro-3,4-dihydro-2(1H)-naphthalenone (CAS 1337861-29-6)
- 7-(Benzyloxy)-6-methoxyquinazolin-4(3H)-one, 97% (CAS 179688-01-8)
- 5-Methyl-4-nitroso-2-phenyl-2,4-dihydro-3H-pyrazol-3-one (CAS 56634-85-6)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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