2-Oxo-2,3-dihydropyrimidine-4-carbaldehyde oxime CAS 7460-56-2
| CAS No. | 7460-56-2 |
| Molecular Formula | C5H5N3O2 |
| Molecular Weight | 139.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Oxo-2,3-dihydropyrimidine-4-carbaldehyde oxime 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.
CATO supplies 2-Oxo-2,3-dihydropyrimidine-4-carbaldehyde oxime (CAS 7460-56-2), a certified reference material (molecular formula C5H5N3O2, MW 139.11 g/mol) for analytical method development and quality control.
2-Oxo-2,3-dihydropyrimidine-4-carbaldehyde oxime (C5H5N3O2) 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 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).
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 | C5H5N3O2 |
| Molecular Weight | 139.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 3 |
Related Oxo Standards
- 2-Oxo-1,2-dihydropyrimidine-4-carboxamide (CAS 1823869-72-2)
- 6-Oxo-5,6-dihydropyrimidine-4-carboxylic acid (CAS 1860506-22-4)
- 6-Oxo-1,6-dihydropyrimidine-5-carboxylic acid (CAS 65754-04-3)
- 2-Oxo-1,2-dihydropyrimidine-4-carboxylic Acid (CAS 89379-73-7)
- 1-Methyl-1,2-dihydropyrimidine-2-thione (CAS 73547-86-1)
- 2-Oxo-1,2-dihydropyrimidine-5-carbaldehyde (CAS 166757-62-6)
- 2-Oxo-1,2-dihydropyrimidine-4-carbaldehyde (CAS 950514-12-2)
- 2-Oxo-1,2-dihydropyrimidine-4-carbohydrazide (CAS 1148048-79-6)
Recommended Standards
- 2-Oxo-2-(1H-pyrrol-2-yl)acetic acid (CAS 77764-48-8)
- 3-Amino-4-pyridazinecarboxylic Acid (CAS 21141-03-7)
- 2-Nitro-5-vinylfuran (CAS 71258-91-8)
- 3-Oxo-2,3-dihydropyridazine-4-carboxamide (CAS 2125-92-0)
- (5-Fluoroquinolin-3-yl)boronic acid (CAS 1264511-10-5)
- 1-(Allyloxy)-3-(trifluoromethyl)benzene (CAS 585-49-9)
- 1-[4-(Acetylamino)phenyl]-5-oxopyrrolidine-3-carboxylic acid (CAS 133749-16-3)
- N'-(Furan-2-carbonyl)isonicotinohydrazide (CAS 27293-28-3)
- (S)-1-((S)-1-(4-methoxyphenyl)ethyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 1644033-67-9)
- 1820-09-3 5E8197JSI1 Verbenol, (+/-)-trans- Bicyclo(3.1.1)hept-3-en-2-ol, 4,6,6-trimethyl-, (1R,2S,5R)-rel- (1alpha,2alpha,5alpha)-4,6,6-Trimethylbicyclo(3.1.1)hept-3-en-2-ol EINECS 217-335-5 trans-Verbenol UNII-5E8197JSI1 (CAS 1820-09-3)
- Methyl 3-formyl-2-pyridinecarboxylate (CAS 133155-82-5)
- Isavuconazole Impurity 77 (CAS 32399-13-6)
- Tetracarbonyl-μ-hydro[(1,2,3,4,5-η)-1-hydroxylato-2,3,4,5-tetrakis(4-methoxyphenyl)-2,4-cyclopentadien-1-yl][(1,2,3,4,5-η)-1-hydroxy-2,3,4,5-tetrakis(4-methoxyphenyl)-2,4-cyclopentadien-1-yl]diruthenium (CAS 873815-22-6)
- Myristoyl Pentapeptide-4 (CAS 1392416-25-9)
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