4-Methylpyridazine-3,6-dione CAS 73268-15-2
| CAS No. | 73268-15-2 |
| Molecular Formula | C5H4N2O2 |
| Molecular Weight | 124.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methylpyridazine-3,6-dione (CAS 73268-15-2), molecular formula C5H4N2O2 and molecular weight 124.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Methylpyridazine-3,6-dione (C5H4N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 124.10 g/mol, it falls into the low-molecular-weight range. 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 | C5H4N2O2 |
| Molecular Weight | 124.10 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.) | 1977 |
| Nitrogen Atoms | 2 |
Related Methylpyridazine Standards
- 4-methylpyridazine-3-carbonitrile (CAS 106861-17-0)
- 5-methylpyridazine-3-carbonitrile (CAS 1333319-50-8)
- 6-methylpyridazine-3-carbonitrile (CAS 49840-90-6)
- 4-Methylpyridazine-3-carbaldehyde (CAS 77709-14-9)
- 5-Methylpyridazine-4-carbaldehyde (CAS 77709-15-0)
- 6-Methylpyridazine-3-carbaldehyde (CAS 635324-41-3)
- 3-Methylpyridazine-4,5-diol (CAS 125110-65-8)
- 6-methylpyridazine-4-carbaldehyde (CAS 1083401-29-9)
Recommended Standards
- 4-Hydroxy-5-oxo-2,5-dihydro-1H-pyrrole-3-carbonitrile (CAS 29418-72-2)
- 4-Pyridazinecarboxylic Acid (CAS 50681-25-9)
- 4-Hydroxy-2-oxo-2,5-dihydro-1H-pyrrole-3-carbonitrile (CAS 83544-53-0)
- 5-(azidomethyl)-1,2-oxazole (CAS 497947-78-1)
- N-(3-Chloro-4-methylphenyl)-4-methoxybenzamide (CAS 196866-15-6)
- 2,6-Dicyclopentylaniline (CAS 67330-67-0)
- n-Cyclopentyl-2-(2-iodophenoxy)acetamide (CAS 1147836-18-7)
- 1'-Benzyl-[1,4'-bipiperidine]-4'-carbonitrile-2,2,3,3,4,4,5,5,6,6-d10 (CAS 1329624-69-2)
- (4-Chlorophenyl)(4-methoxy-3,5-dimethylphenyl)methanone (CAS 61259-84-5)
- N-(1,3-Dichloro-7-nitro-9H-fluoren-2-yl)acetamide (CAS 899-87-6)
- 3-((4-Fluorobenzyl)oxy)-5-nitro-1H-indazole (CAS 1365939-34-9)
- (2E,4E,6Z)-2,4,6-Decatrienoic Acid Methyl Ester (CAS 51544-64-0)
- 4＇-Bromo-3-chloropropiophenone (CAS 31736-73-9)
- A-18-F-NH2; Morphine Modulating Neuropeptide (CAS 99588-52-0)
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