4-Hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylic acid CAS 1442437-21-9
| CAS No. | 1442437-21-9 |
| Molecular Formula | C5H4N2O4 |
| Molecular Weight | 156.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 156.10 g/mol gives 4-Hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylic acid (CAS 1442437-21-9), a certified reference material (molecular formula C5H4N2O4, MW 156.10 g/mol) for analytical method development and quality control.
The molecular framework of 4-Hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylic acid (C5H4N2O4) is characterized by a carbohydrate-derived structure, an amide group. 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.
CATO manufactures 4-Hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H4N2O4 |
| Molecular Weight | 156.10 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 |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 2 |
Related Hydroxy Standards
- 6-Hydroxy-5-nitropyridin-2(1H)-one (CAS 16013-84-6)
- 4-Hydroxy-6-oxo-5,6-dihydropyridazine-3-carboxylic Acid (CAS 1823277-97-9)
- 3-Hydroxy-4-nitropyridine 1-oxide (CAS 19355-03-4)
- 2-Hydroxy-4-nitro-1H-pyrrole-3-carbaldehyde (CAS 263144-36-1)
- 4-Hydroxy-2-nitro-1H-pyrrole-3-carbaldehyde (CAS 263144-33-8)
- 4-Hydroxy-3-nitropyridine N-oxide (CAS 31872-57-8)
- 4-Hydroxy-6-oxo-1,6-dihydro-1,3,5-triazine-2-carboxamide (CAS 69391-08-8)
- 4-Hydroxy-2-oxo-2H-pyran-6-carboxylic Acid (CAS 108298-44-8)
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