5-Methoxypyridazine-4-carboxylic acid CAS 2803865-94-1
| CAS No. | 2803865-94-1 |
| Molecular Formula | C6H6N2O3 |
| Molecular Weight | 154.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 154.12 g/mol gives 5-Methoxypyridazine-4-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Methoxypyridazine-4-carboxylic acid (CAS 2803865-94-1) is a high-purity analytical reference standard with the molecular formula C6H6N2O3 and a molecular weight of 154.12 g/mol.
The molecular framework of 5-Methoxypyridazine-4-carboxylic acid (C6H6N2O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C6H6N2O3 |
| Molecular Weight | 154.12 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 2 |
Related Methoxypyridazine Standards
- 5-Methoxypyridazine-3-carboxylic acid (CAS 1530832-17-7)
- 6-Methoxypyridazine-4-boronic Acid (CAS 1428423-36-2)
- 6-methoxypyridazine-4-carboxylic acid (CAS 1427202-39-8)
- 6-methoxypyridazine-3-carboxylic acid (CAS 56434-28-7)
- 6-methoxypyridazine-3-carbaldehyde (CAS 90237-25-5)
- 6-methoxypyridazine-3-carbonitrile (CAS 72082-10-1)
- Methyl 6-methoxypyridazine-4-carboxylate (CAS 1909347-83-6)
- Methyl 3-methoxypyridazine-4-carboxylate (CAS 614732-01-3)
Recommended Standards
- 5-Methoxypyrazine-2-carboxylic Acid (CAS 40155-42-8)
- 5-Methoxypyrimidine-2-carboxylic acid (CAS 344325-94-6)
- 5-Methoxy-4-oxo-4H-pyran-2-carbaldehyde (CAS 35438-43-8)
- 5-Methyl-2-oxo-2H-pyran-6-carboxylic acid (CAS 3060-42-2)
- 2,4-Bis(benzyloxy)-1,3,5-trichlorobenzene (CAS 337924-05-7)
- N-(4-Ethylphenyl)-3-(4-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-10-8)
- 6-Bromo-7-chloroisoquinoline (CAS 1036712-54-5)
- 2-((5-(4-Bromophenyl)-1,3,4-oxadiazol-2-yl)thio)-N,N-diphenylacetamide (CAS 332161-53-2)
- 1-(6-Chloropyrimidin-4-yl)pyrrolidin-3-amine (CAS 945896-22-0)
- 1-(4-tert-Butylphenoxy)propan-2-ol (CAS 2416-30-0)
- 1,3-Difluoro-2-((methylsulfonyl)methyl)benzene (CAS 886497-97-8)
- 1-(7-(2-Chlorophenyl)-1,4-thiazepan-4-yl)-2-(cyclopentylthio)ethan-1-one (CAS 1795302-31-6)
- N-butyl-2-chlorobenzamide (CAS 62797-97-1)
- [y-Glu15]-Semaglutide Impurity 134 (CAS CATO-C4X-2226134)
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