2-Methoxy-3-nitropyridine-4-carboxaldehyde CAS 221349-76-4
| CAS No. | 221349-76-4 |
| Molecular Formula | C7H6N2O4 |
| Molecular Weight | 182.13 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 2-Methoxy-3-nitropyridine-4-carboxaldehyde.
CATO supplies 2-Methoxy-3-nitropyridine-4-carboxaldehyde (CAS 221349-76-4), a certified reference material (molecular formula C7H6N2O4, MW 182.13 g/mol) for analytical method development and quality control.
2-Methoxy-3-nitropyridine-4-carboxaldehyde (C7H6N2O4) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H6N2O4 |
| Molecular Weight | 182.13 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.) | 2020 |
| Nitrogen Atoms | 2 |
Related Methoxy Standards
- 6-Methoxy-4-nitropicolinaldehyde (CAS 1289021-12-0)
- 5-Methoxy-6-nitropicolinaldehyde (CAS 397309-59-0)
- 6-methoxy-3-nitropyridine-2-carbaldehyde (CAS 871583-87-8)
- (4-Methoxy-4-oxo-butyl)phosphonic acid (CAS 1263034-23-6)
- 3-Methoxy-N-methyl-4-nitroaniline (CAS 1017782-97-6)
- 5-Methoxy-2-methyl-4-nitroaniline (CAS 106579-00-4)
- (3-Methoxy-2-nitrophenyl)methanamine (CAS 106837-96-1)
- (3-Methoxy-5-nitrophenyl)methanamine (CAS 1108723-88-1)
Recommended Standards
- 2-Hydroxy-6-nitrobenzamide (CAS 725714-75-0)
- 2-Methyl-5-nitronicotinic Acid (CAS 59290-81-2)
- 2-Hydroxy-5-nitrobenzamide (CAS 2912-78-9)
- 2-Methylpyrimidine-4,5-dicarboxylic acid (CAS 241469-86-3)
- Dimethyl 2-[2-(4-methoxyphenyl)hydrazono]-3-oxopentanedioate (CAS 121582-52-3)
- 6-((tert-Butyldiphenylsilyl)oxy)-2,3-dihydro-1H-inden-1-one (CAS 440105-91-9)
- (3-methoxyphenyl)(1-methyl-1H-imidazol-2-yl)methanamine dihydrochloride (CAS 2031268-75-2)
- N-(5-Cyclobutyl-1H-pyrazol-3-yl)-2-(4-((5-((2-(2,6-dioxopiperidin-3-yl)-1,3-dioxoisoindolin-4-yl)oxy)pentyl)oxy)phenyl)acetamide (CAS 2118356-96-8)
- 4-Propyl-2-(1h-pyrrol-1-yl)-1,3-thiazole-5-carboxylic acid (CAS 1031672-01-1)
- 3-((2-Chlorobenzyl)thio)propan-1-amine (CAS 1082766-31-1)
- Kojic Acid-13C6 (CAS CATO-CCFD201548)
- (6-chloropyridin-3-yl)(cyclopropyl)methanamine, oxalic acid (CAS 1803604-28-5)
- 1-(4-Chlorophenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 39629-87-3)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
Why CATO?
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