4-Acetylpyridine-N-oxide
Product Specifications
- CAS
- 2402-96-2
- MF
- C7H7NO2
- Appearance
- white solid
- Synonym(s)
- 1-(1-oxidopyridin-1-ium-4-yl)ethanone; Fampridine Impurity ; 4-Acetylpyridine N-oxide; 1-(1-oxidopyridin-1-ium-4-yl)ethanone; Ethanone, 1-(1-oxido-4-pyridinyl)-
- Shipping
- ambient temperature
- Storage
- 2-8°C
4-Acetylpyridine-N-oxide is PubChem CID 337542 and carries CAS 2402-96-2. Its molecular formula is C7H7NO2. The structure is encoded as SMILES CC(=O)C1=CC=[N+](C=C1)[O-] and InChIKey GUHDDRZAZNIQJB-UHFFFAOYSA-N. PubChem lists “4-acetylpyridine 1-oxide” as a synonym, resolving the spacing in the earlier catalog name.
An acetyl group is attached at position 4 of the pyridine ring, opposite its nitrogen. One oxygen belongs to the acetyl carbonyl and the second is bonded to ring nitrogen. PubChem represents the N-oxide with charge-separated nitrogen and oxygen inside one overall neutral component; it is not an added oxide ion or salt. The pyridine ring supplies five carbons, and the acetyl group supplies two more, matching C7H7NO2. The acetyl methyl carbon bonds to its carbonyl carbon, not directly to pyridine. No stereochemical layer occurs. Position 4 and the N-oxide designation together define the intended connectivity.
For a precise inquiry, enter CAS 2402-96-2 and keep “N-oxide” in the compound name. Add the requested amount, contact information, and any question about identity documentation. CID 337542 or InChIKey GUHDDRZAZNIQJB-UHFFFAOYSA-N enables a direct comparison when another record writes “1-oxide.” Rlavie can associate those identifiers with this specific acetylpyridine graph. Omitting the oxidation state or acetyl locant could instead point to a different pyridine compound.