3-Hydroxy-4-methylpyridazine
Product Specifications
- CAS
- 33471-40-8
- MF
- C5H6N2O
- Appearance
- white solid
- Synonym(s)
- 4-methyl-2,3-dihydropyridazin-3-one；4-methylpyridazin-3(2H)-one；4-Methyl-3(2H)-pyridazinone；4-methylpyridazin-3-ol；4-Methyl-2H-pyridazin-3-one；4-Hydroxy-4-methyl-1,2-diazine
- Shipping
- ambient temperature
- Storage
- ambient temperature
3-Hydroxy-4-methylpyridazine is linked to CAS 33471-40-8 and molecular formula C5H6N2O. PubChem finds one compound for the CAS, CID 11412358, and titles it 4-Methylpyridazin-3-ol. The Rlavie wording appears as an official synonym for the same CID. PubChem’s IUPAC name, 5-methyl-1H-pyridazin-6-one, supplies a keto-style description without creating a separate catalog identity.
The page SMILES CC1=CC=NNC1=O represents the pyridazinone form with a ring carbonyl, neighboring nitrogens, and one methyl branch. PubChem gives InChIKey HBPUWDXGIIXNTF-UHFFFAOYSA-N, matching the exact InChI recorded for this item. Formula C5H6N2O is consistent with the graph, yet the complete structural strings are needed to reconcile the hydroxy and carbonyl naming conventions under CID 11412358.
When the 3-hydroxy title is used in correspondence, CAS 33471-40-8 should accompany it so the tautomeric wording remains anchored to the verified entry. A structure file may be compared with the SMILES, InChIKey, and PubChem CID rather than judged from a single textual form. That combined check preserves the methyl position and ring-nitrogen arrangement. It also shows clearly why the hydroxy label and PubChem carbonyl notation belong to one CID despite their different text. The page states only the evidence shared by these identifiers and does not generalize it to other methylpyridazinones.