4-Methoxypyridazin-3(2H)-one CAS 38732-07-9
| CAS No. | 38732-07-9 |
| Molecular Formula | C5H6N2O2 |
| Molecular Weight | 126.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 126.11 g/mol gives 4-Methoxypyridazin-3(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Methoxypyridazin-3(2H)-one (CAS 38732-07-9) is a high-purity analytical reference standard with the molecular formula C5H6N2O2 and a molecular weight of 126.11 g/mol.
Based on its molecular formula C5H6N2O2, 4-Methoxypyridazin-3(2H)-one contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 126.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Methoxypyridazin-3(2H)-one 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.
Physical & Chemical Properties
| Molecular Formula | C5H6N2O2 |
| Molecular Weight | 126.11 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
Related Methoxypyridazin Standards
- 5-Methoxypyridazin-3(2H)-one (CAS 123696-01-5)
- 4-methoxypyridazin-3-amine (CAS 1026194-47-7)
- 3-methoxypyridazin-4-amine (CAS 89179-63-5)
- 1511892-44-6 (6-methoxypyridazin-4-yl)methanamine (CAS 1511892-44-6)
- (6-methoxypyridazin-3-yl)methanamine (CAS 944896-30-4)
- (3-METHOXYPYRIDAZIN-4-YL)METHANOL (CAS 1591827-03-0)
- (5-Methoxypyridazin-3-yl)methanol (CAS 627525-69-3)
- (3-methoxypyridazin-4-yl)methanamine (CAS 1149586-23-1)
Recommended Standards
- 4-Hydroxy-6-methylpyridazin-3(2H)-one (CAS 22390-53-0)
- 4-Methoxypyrimidin-5-ol (CAS 2383609-53-6)
- 4-Hydroxy-5-methyl-2-methylene-3(2H)-furanone (CAS 948557-12-8)
- 4-methyl-3,6-dihydro-2H-pyran-2,6-dione (CAS 67116-19-2)
- 5-Bromo-6-(but-3-yn-1-yloxy)pyridin-3-amine (CAS 1693948-96-7)
- 1-(3-Chloro-2-methylphenyl)-1h-pyrazole-3-carboxylic acid (CAS 1152535-44-8)
- 2-(Aminomethyl)cyclopentanone Hydrochloride (CAS 1360547-45-0)
- 2-((2,4-Dimethylphenyl)amino)-4H-[1,3]thiazino[5,6-b]quinoxalin-4-one (CAS 154371-23-0)
- Ethyl 1-(pyridin-4-yl)piperidine-4-carboxylate hydrochloride (CAS 343247-16-5)
- propyl 5-bromothiophene-3-carboxylate (CAS 1478954-26-5)
- 3,3'-(Oxybis(1,3-dioxoisoindoline-5,2-diyl))dibenzoic acid (CAS 304871-39-4)
- tert-Butyl 8-hydroxy-5-thia-2-azaspiro[3.4]octane-2-carboxylate (CAS 1340481-89-1)
- Afobazole (CAS 173352-21-1)
- Cholecystokinin, CCK Tetrapeptide (30-33) (CAS 35144-91-3)
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