3-hydroxypyridazine
Product Specifications
- CAS
- 504-30-3
- Molecular Formula
- C4H4N2O
- Appearance
- white solid
- Synonym(s)
- 3(2H)-Pyridazinone; Pyridazin-3(2H)-one; 2,3-Dihydropyridazine-3-one; Pyridazine-3-ol; 2H-Pyridazin-3-one; 1H-pyridazin-6-one
- Shipping
- ambient temperature
- Storage
- 2-8°C
- SMILES
- C1=CC(=O)NN=C1
- InChI
- InChI=1S/C4H4N2O/c7-4-2-1-3-5-6-4/h1-3H,(H,6,7)
Product Information
3-hydroxypyridazine is linked to CAS 504-30-3 and molecular formula C4H4N2O. PubChem maps this CAS to one compound, CID 68153, with the title 3(2H)-Pyridazinone. The site label occurs in PubChem’s synonym list, while its IUPAC field reads 1H-pyridazin-6-one. These hydroxy and keto naming expressions are consolidated under the same verified CID, CAS number, formula, and structure record rather than presented as unrelated catalog identities.
The stored SMILES C1=CC(=O)NN=C1 expresses the pyridazinone representation with a ring carbonyl and adjacent nitrogen atoms. PubChem supplies InChIKey AAILEWXSEQLMNI-UHFFFAOYSA-N, and the corresponding InChI matches the page value exactly. Because the public names emphasize different tautomeric descriptions, the full structural identifiers are more precise than choosing one shortened label. Their agreement provides the evidence needed to keep this page tied to CID 68153.
An identity-focused enquiry should cite CAS 504-30-3 and may mention both 3-hydroxypyridazine and 3(2H)-pyridazinone wording. If a structure file accompanies the message, it can be checked against the recorded SMILES and InChIKey rather than matched by title alone. The molecular formula and unique PubChem CID offer additional reference points. This treatment makes the nomenclature relationship explicit while restricting the page to facts supported by the same compound record.